The Sentence Core: Subject + Verb

1.Subject and finite verb

The smallest complete German statement consists of two parts: a subject and a finite verb. The subject names who or what the sentence is about. The finite verb says what that subject does, what happens, or what it is like. Everything else in a basic sentence (objects, time, place) is attached to this pair.

SUBJECT + FINITE VERB
Ich + lerne
Anna + arbeitet

In a normal German statement, the verb form always matches its subject, so the two parts cannot be chosen independently.

2.The subject

The subject answers the question wer oder was? ("who or what?") and stands in the nominative. It can be a name, a noun with its article or possessive, a pronoun, or several of these joined by und. It does not have to be a person: things, vehicles, languages, and abstract nouns work just as well.

3.Finite verb and infinitive

Dictionaries list verbs in the infinitive: lernen, wohnen, arbeiten, sein, haben. The infinitive names an action but does not say who performs it. In a sentence, the verb becomes finite: it takes a form that carries person (ich, du, er …) and number (one or several). Only a finite verb can be the verb of a main clause.

For this reason, Ich wohnen. is not a German sentence, while Ich wohne. is.

4.Agreement between subject and verb

The finite verb agrees with the subject in person and number. When the subject changes, the verb ending usually changes with it. The regular verb lernen shows the pattern:

Irregular verbs follow the same principle with less predictable forms. The most important one is sein, whose forms differ completely from the infinitive:

ich bin     wir sind
du bist     ihr seid
er ist      sie / Sie sind

Number matters in the same way for nouns. One person or thing takes the singular form, several take the plural form: Der Hund spielt. but Die Hunde spielen. Two singular nouns joined by und add up to a plural subject, so the verb is plural as well.

A noun and a pronoun that stand for the same subject trigger the same verb form: Anna arbeitet and sie arbeitet are built identically.

5.Core with sein and haben

The core is not limited to action verbs. sein and haben are finite verbs too and form the same pair with a subject. They simply need further information to complete the meaning: a description after sein, a thing after haben.

6.The subject stays visible

A verb ending carries person and number, and in some languages that allows the subject to be left out. German does not work this way: an ordinary statement still names the subject with a pronoun or noun. Dropping it produces an incomplete sentence.

7.Keeping the core visible in a longer sentence

A sentence can be complete with only subject and verb, and it can also grow. Adding the object, the time, and the place leaves the core untouched.

The extra parts depend on the verb. schlafen and warten often stand alone (Das Baby schläft.), while kaufen, wohnen, and heißen call for something more (Ich kaufe Brot., Wir wohnen in Hamburg., Er heißt Daniel.).

In a long sentence, the core is found in two steps: first the finite verb, then the subject that matches it. All remaining parts are additional information.

The same reading works for Mein Freund arbeitet am Montag in München.: arbeitet is the finite verb, Mein Freund is its subject, and am Montag and in München are extras. This is a reading aid, not a complete word-order rule.

8.Common mix-ups

Most early mistakes come from four causes: an infinitive in place of a finite verb, a wrong ending for the subject, a singular verb with a plural subject, and a missing verb.

A fifth mix-up concerns reading rather than writing: extra information is sometimes mistaken for the core. In Ich lerne heute in der Bibliothek., heute and in der Bibliothek only add time and place. The core remains Ich + lerne.