Noun

There are four noun classes in German.

• weak nouns
• strong nouns
• irregular nouns
• mixed nouns

Weak nouns

Weak nouns are almost female nouns. All male nouns which form the plural by adding (e)n and neuter weak nouns don't exist.

Some male nouns are weak which end with "e".

The declination of weak nouns is also called n-declination
since you have to add (e)n to the male nouns in all cases except from nominative.

Strong nouns

Strong nouns are all nouns in which the is singular and tha plural the same, which form the plural by adding "e", which form the plyral by adding "er".

Irregular nouns

There are just a few irregular nouns.
They form the plural by adding (e)n (=weak noun behaviour)
and add (e)n in genitive, dative and accusative case of male nouns (=weak noun behaviour).
What distigiush them from weak nouns is that they add an additional "s" in the genitive case
and the neuter noun (only one: das Herz) behaves similar.

Mixed nouns

Mixed nouns behave like strong and weak nouns.
They add (e)s in the genitive case of male and neuter nouns (=strong noun behaviour)
but form the plural by adding (e)n (=weak noun behaviour).

• Learn German Grammar
• German Noun
• Germans Adjectives
• German Verbs
• Demonstrative Pronoun
• Possessive Pronoun
• Personal Pronoun
• Relative Pronoun
• Gender of Noun
• The Four Cases in German