1.How to use this reference page
This page explains du and Sie as both a grammatical and social system. The forms themselves are easy to learn; the harder question is when each form sounds appropriate.
Core model:
du / ihr
→ informal, familiar, or in-group address
Sie
→ polite, formal, or distance-preserving address
But actual usage depends on:
situation
+ relationship
+ institutional culture
+ age / role / hierarchy
+ region / sector
= actual form of address
Compare:
Kommst du morgen?
Kommen Sie morgen?
Both can be polite. The difference is not only grammatical but also about social closeness and distance.
Key rule:
With unknown adult interlocutors,
Sieis a safe starting point in more formal situations. In many teams, industries, and online contexts, however,dumay be the local norm.
So there are rules, but also strong contextual variation.
This page covers:
grammar
forms of address
workplace
university
services and authorities
online communication
switching from Sie to du
declining or delaying the switch
hybrid forms
spelling
pragmatic misunderstandings
This page is reference material. It contains no exercises or tests.
2.1. The basic pair du and Sie
du is informal singular address. Sie is formal address for one or more people.
Examples:
Du kommst morgen.
Sie kommen morgen.
3.2. du: person and verb form
du takes the second-person singular verb form.
Examples:
du bist
du hast
du kommst
4.3. Sie: verb form
Formal Sie takes the third-person plural verb form.
Examples:
Sie sind
Sie haben
Sie kommen
5.4. Informal plural ihr
When informally addressing more than one person, German uses ihr.
Examples:
Kommt ihr morgen?
6.5. Formal singular and plural
Sie has the same form in singular and plural; context shows how many people are addressed.
Examples:
Kommen Sie morgen?
7.6. Accusative of du
The accusative form of du is dich.
Examples:
Ich sehe dich morgen.
8.7. Dative of du
The dative form of du is dir.
Examples:
Ich helfe dir gern.
9.8. Formal object forms
Formal address uses Sie in the accusative and Ihnen in the dative.
Examples:
Ich sehe Sie morgen.
Ich helfe Ihnen gern.
10.9. Possessives with du
du uses the possessive family dein-.
Examples:
dein Termin
deine Unterlagen
11.10. Possessives with Sie
Formal address uses Ihr- with a capital letter.
Examples:
Ihr Termin
Ihre Unterlagen
12.11. Reflexive pronouns
With du, the reflexive pronoun is dich; with Sie, it is sich.
Examples:
Setz dich bitte.
Setzen Sie sich bitte.
13.12. Grammar after switching forms
After switching to du, the whole address system must be adjusted consistently.
Sie → du
Ihnen → dir
Ihr/Ihre → dein/deine
sich → dich
kommen Sie → kommst du
14.13. Closeness and distance
du often signals greater social closeness; Sie more often marks respectful distance.
Examples:
Nähe ≠ automatisch Freundschaft
Distanz ≠ Unfreundlichkeit
15.14. Sie is not unfriendly
Sie can sound warm, friendly, and personal. Politeness depends strongly on tone and wording.
Examples:
Wie kann ich Ihnen helfen?
16.15. du is not automatically friendly
Unsolicited du can be perceived as friendliness, sector culture, or boundary crossing depending on context.
Examples:
Kontext entscheidet.
17.16. Unknown adults
In more formal interactions, Sie is a safe starting point when no other local norm is clearly visible.
Examples:
Guten Tag, können Sie mir helfen?
18.17. Explicit du culture
If a company, class, club, or team explicitly communicates a du culture, du may be expected from the start.
Examples:
Bei uns sind alle per du.
19.18. Observe local norms
Signs, emails, name badges, website tone, and how others address each other provide useful clues.
Examples:
Hallo Anna ... ↔ Sehr geehrte Frau Berger ...
20.19. Avoid asymmetric address
If one person uses du while the other is expected to use Sie, the relationship can sound hierarchical or patronizing.
Examples:
du nach unten, Sie nach oben → stark markiert
21.20. Reciprocity
In contemporary everyday usage, symmetrical address is usually the unmarked expectation: both use du or both use Sie.
Examples:
Wir können uns gern duzen.
22.21. Respect is not tied to Sie
An organization can consistently use du and still communicate formally, professionally, or respectfully.
Examples:
du + sachlicher Ton
23.22. Closeness is not tied to first names
First names and du often occur together, but they are not grammatically inseparable.
Examples:
Anna, kommst du?
24.23. Surname and Sie
Classic formal address often combines Herr/Frau + surname with Sie.
Examples:
Frau Berger, kommen Sie bitte?
25.24. Do not decide by age alone
Age can matter, but institutional culture, role, and situation are often just as important.
Examples:
Alter = Hinweis, nicht Automatismus
26.25. Do not decide by hierarchy alone
Hierarchy influences address, but many modern organizations have fixed du or Sie norms regardless of rank.
Examples:
Unternehmenskultur prüfen
27.26. Safe strategy under uncertainty
When context is unclear, polite Sie is usually less risky than unsolicited du in formal adult interactions.
Examples:
Entschuldigen Sie, ...
28.27. New colleagues
In a new team, observe the local address norm or ask explicitly.
Examples:
Wie ist das bei euch – seid ihr hier alle per du?
29.28. Du culture at work
In some companies, du is used across the team or the entire organization.
Examples:
Bei uns duzen sich alle.
30.29. Sie culture at work
In other organizations, Sie remains common in customer contact, across departments, or throughout professional communication.
Examples:
Guten Morgen, Frau Klein.
31.30. Managers
Traditional etiquette gives higher-ranking people more initiative in offering du; modern organizations may already regulate this collectively.
Examples:
Möchten wir uns duzen?
32.31. Peers at work
Among peers, offering du can be relatively straightforward but should still not feel forced.
Examples:
Wir können gern du sagen, wenn das für dich passt.
33.32. Customers and clients
In customer contact, corporate language matters greatly: some brands systematically use du, others Sie.
Examples:
Wie können wir dir helfen? ↔ Wie können wir Ihnen helfen?
34.33. Authorities and administration
In communication with authorities, Sie remains the expected neutral form.
Examples:
Bitte reichen Sie die Unterlagen ein.
35.34. Medical settings
Between adult patients and medical staff, Sie is a safe default unless another arrangement is established.
Examples:
Wie fühlen Sie sich heute?
36.35. School: teachers and adults
Between teachers and adult parents or other adult contacts, Sie is usually neutral unless people know each other differently.
Examples:
Guten Tag, Frau Weber.
37.36. University: staff and students
University practice varies greatly. Students usually use du with each other; address between students and staff depends on discipline, institution, and local culture.
Examples:
Frau Professorin Weber, könnten Sie ...?
38.37. Vocational training
In vocational settings, similar age does not automatically mean du; workplace norms matter.
Examples:
Wie sprechen wir uns hier an?
39.38. Job interview
In a job interview, Sie is a safe form unless the company explicitly establishes du.
Examples:
Vielen Dank, dass Sie sich Zeit nehmen.
40.39. Onboarding
During onboarding, forms of address should ideally become clear as part of communication culture.
Examples:
Bei uns sind alle per du.
41.40. External partners
Even in an internal du culture, external business partners may initially be addressed with Sie.
Examples:
interne Norm ≠ externe Norm
42.41. Mixed-group meetings
When some participants use du and others Sie, relationships do not need to be artificially standardized.
Examples:
Anrede kann innerhalb einer Gruppe variieren.
43.42. Conflict does not automatically change address
An established du does not normally become Sie spontaneously during conflict; switching back would be strongly marked.
Examples:
Siezen als Distanzsignal kann demonstrativ wirken.
44.43. Retail
In retail, address depends strongly on brand, target audience, and company style.
Examples:
Kann ich Ihnen helfen? ↔ Kann ich dir helfen?
45.44. Hospitality
In restaurants and cafés, usage ranges from formal Sie to deliberately casual du.
Examples:
Was darf ich Ihnen bringen? ↔ Was kann ich dir bringen?
46.45. Hotels
In traditional hotels, Sie is often neutral with guests; lifestyle concepts may use other conventions.
Examples:
Wie kann ich Ihnen behilflich sein?
47.46. Hotlines and support
Support teams may consistently use either Sie or du; replies should generally follow the established form.
Examples:
Danke für deine Nachricht. ↔ Danke für Ihre Nachricht.
48.47. Websites
Websites often signal the intended form of address in navigation, FAQs, or form wording.
Examples:
Melde dich an. ↔ Melden Sie sich an.
49.48. Apps
Many apps use du to sound direct and personal; this is product style, not necessarily private closeness.
Examples:
Dein Konto
Deine Einstellungen
50.49. Social media
du is common on social media but not universal. Institutional accounts may still use Sie.
Examples:
Danke für deinen Kommentar.
51.50. LinkedIn and professional networks
Professional platforms have no single address norm; profile tone, industry, and prior contact matter.
Examples:
Guten Tag, Frau Keller, ... ↔ Hallo Jana, ...
52.51. Email after website tone
If an organization explicitly uses du on its website, an email through the same communication context may also appropriately use du.
Examples:
Hallo, ich habe eine Frage zu eurem Angebot.
53.52. Newsletters
Newsletters may use du or Sie; the choice is part of brand voice.
Examples:
Liebe Kundin, ... ↔ Hallo Anna, ...
54.53. Advertising
du in advertising creates linguistic closeness but does not automatically determine personal customer interaction.
Examples:
Hol dir dein Angebot.
55.54. Community contexts
In forums, hobby groups, and communities, du may be the clear in-group norm.
Examples:
Willkommen! Stell dich gern kurz vor.
56.55. Clubs and associations
Many clubs have their own address culture; sports and leisure settings often use du, but not universally.
Examples:
lokale Norm beobachten
57.56. Public space
Brief interactions with unknown adults in public often begin with Sie in neutral standard usage.
Examples:
Entschuldigen Sie, ist hier noch frei?
58.57. Offering du
The switch should be offered explicitly and simply.
Examples:
Wir können uns gern duzen.
Wollen wir du sagen?
59.58. Introducing yourself by first name
Giving a first name can signal informality but is not always an unambiguous offer to use du.
Examples:
Ich bin Anna.
60.59. Explicit offers are clearer
When uncertainty is possible, an explicit formulation prevents misunderstandings.
Examples:
Ich bin Anna – wir können gern du sagen.
61.60. Accepting du
Acceptance can be very brief.
Examples:
Gern, ich bin Alex.
Ja, sehr gern.
62.61. Politely declining du
It is acceptable to decline an offer to use du, especially when personal distance matters.
Examples:
Danke, ich würde vorerst gern beim Sie bleiben.
63.62. Postponing the switch
A polite postponement can reduce awkwardness.
Examples:
Vielleicht bleiben wir zunächst noch beim Sie.
64.63. Do not personalize a refusal
A preference for Sie may reflect style, habit, or professional distance and need not imply dislike.
Examples:
Sie-Wunsch ≠ persönliche Ablehnung
65.64. Who offers du?
Traditional etiquette often considers rank and sometimes age; modern practice depends strongly on organization and context.
Examples:
keine universelle Ein-Person-Regel
66.65. Switching from Sie to du
Once the switch is clearly accepted, use the new form consistently.
Examples:
Frau Weber, können Sie ...? → Anna, kannst du ...?
67.66. Switching back to Sie
A deliberate switch back to Sie is possible but strongly distancing and usually needs explanation.
Examples:
Ich würde im beruflichen Kontext gern wieder beim Sie bleiben.
68.67. du internally, Sie externally
Switching address systems depending on relationship is normal.
Examples:
intern: du · extern: Sie
69.68. Old and new contacts
If a group changes its norm, existing relationships and new contacts need not become identical immediately.
Examples:
Übergangsphasen sind möglich.
70.69. Switching after a long acquaintance
An offer to use du can still make sense after years of Sie; long-standing usage does not prohibit change.
Examples:
Wir kennen uns jetzt schon lange – wollen wir uns duzen?
71.70. Keeping Sie despite personal warmth
Some relationships deliberately keep Sie despite warmth and familiarity.
Examples:
Nähe und Sie können zusammengehen.
72.71. du does not require personal intimacy
A workplace du may simply be organizational convention and does not imply friendship.
Examples:
professionelles Du
73.72. Marking the transition linguistically
A short explicit sentence makes the new frame clear for both sides.
Examples:
Dann gern per du.
74.73. First name + Sie
First name + Sie does occur and lies between classic distance and first-name familiarity.
Examples:
Anna, könnten Sie kurz kommen?
75.74. The Hamburger Sie
The term Hamburger Sie traditionally means first name + Sie; the pattern is not limited to Hamburg.
Examples:
Jens, kommen Sie bitte?
76.75. Surname + du
Surname + du also occurs, but it is more marked and region- or group-specific.
Examples:
Meier, kommst du kurz?
77.76. The Münchner Du
The label Münchner Du often refers to surname + du; it is not a general standard norm.
Examples:
Huber, kannst du ...?
78.77. Titles with Sie
Academic or professional titles can appear with Sie in formal address.
Examples:
Frau Professorin Weber, könnten Sie ...?
79.78. First name does not automatically mean du
Especially in international companies, first name + Sie can occur; do not infer pronoun choice from name use alone.
Examples:
Anna, können Sie ...?
80.79. Surname does not automatically mean Sie
In some regional or professional groups, surname + du can occur.
Examples:
Müller, kannst du ...?
81.80. Capitalization of Sie
Formal Sie and its related forms are capitalized.
Examples:
Sie
Ihnen
Ihr
Ihre
82.81. Lowercase du
du, dir, dich, and dein are generally lowercase.
Examples:
du
dir
dich
dein
83.82. Capital Du in personal correspondence
In personally addressed letters, emails, and similar texts, capitalization is also possible.
Examples:
Wie geht es Dir/dir?
84.83. du stays lowercase in narrative dialogue
In ordinary quoted dialogue in narrative text, du is lowercase.
Examples:
„Was machst du?“, fragte sie.
85.84. Distinguishing Sie and sie
Capitalization can grammatically distinguish formal address from reference to a third person.
Examples:
Kennen Sie sie?
86.85. Mistake: using du without context
In a more formal situation, unsolicited du can sound overly familiar or disrespectful.
Examples:
Kontext zuerst lesen.
87.86. Mistake: treating Sie as cold
Sie can express professional respect and is not automatically emotionally cold.
Examples:
freundliches Sie
88.87. Mistake: overreading hierarchy
Not every du culture means absence of hierarchy, and not every Sie signals strong hierarchy.
Examples:
Anrede ≠ Organisationsstruktur
89.88. Mistake: extending marketing du everywhere
A brand may use du online and still use Sie in personal service.
Examples:
Kanal beachten.
90.89. Mistake: misreading first names
A first name alone does not prove a du relationship.
Examples:
Vorname + Sie ist möglich.
91.90. Mistake: mixing grammatical systems
After switching forms, pronouns, verb forms, and possessives should not be mixed.
Examples:
Falsch: Kannst Sie ...?
92.91. Mistake: forgetting plural ihr
Informal address to several people requires ihr, not du.
Examples:
Kommt ihr morgen?
93.92. Mistake: conjugating plural Sie incorrectly
Formal Sie uses the same verb form as third-person plural sie.
Examples:
Sie kommen.
94.93. Context check
Five questions help with the choice.
1. Kenne ich die Person?
2. Wie formell ist die Situation?
3. Gibt es eine sichtbare Team- oder Markenregel?
4. Wie sprechen sich die anderen an?
5. Ist ein Wechsel ausdrücklich angeboten worden?
95.94. Grammar check
The two systems should be stored as complete grammatical packages.
du → dich → dir → dein → bist/hast/kommst
ihr → euch → euer → seid/habt/kommt
Sie → Sie → Ihnen → Ihr → sind/haben/kommen
96.95. Switching check
A switch works best when it is explicit, reciprocal, and voluntary.
Angebot?
Annahme?
beidseitig?
neue Formen konsequent?
keine erzwungene Nähe?
97.96. What to remember
du and Sie are simultaneously grammar, relationship signals, and cultural conventions.
du = informeller Singular
ihr = informeller Plural
Sie = formeller Singular und Plural
Sie/Ihnen/Ihr = groß
du/dir/dich/dein = normalerweise klein
Sie ist sichere Ausgangsform in formelleren unbekannten Kontakten
Du-Kultur kann lokal ausdrücklich gelten
Vorname ≠ automatisch du
Sie ≠ unfreundlich
du ≠ automatisch Nähe oder Freundschaft
Wechsel am besten explizit und gegenseitig
98.Quick reference
Grammar
du
dich
dir
dein
du kommst
ihr
euch
euer
ihr kommt
Sie
Sie
Ihnen
Ihr
Sie kommen
Typical starting points
unknown adult in formal context → usually Sie
friends → du
students with each other → usually du
authorities → Sie
explicit company du culture → du
customer contact → check company norm
Switching to du
Wir können uns gern duzen.
Wollen wir du sagen?
Ich bin Anna – wir können gern per du sein.
Response:
Gern, ich bin Alex.
Ja, sehr gern.
Or:
Danke, ich würde vorerst gern beim Sie bleiben.
Hybrid forms
first name + Sie
→ “Hamburger Sie”
surname + du
→ often called “Münchner Du”
→ more strongly marked
Spelling
Sie
Ihnen
Ihr
du
dir
dich
dein
personal correspondence:
du/Du
dir/Dir
dein/Dein
Core idea
Do not ask: “Is du friendly and Sie unfriendly?” Ask instead: “Which form fits the relationship, situation, organization, and communication style?”