German Adjective Endings Without the Panic (A2-B2)

German adjective endings feel like the topic designed to break your confidence. Der gute Wein, but ein guter Wein, but guter Wein: the adjective changes and it seems random. It is not. There are only three ending patterns, and which one you use depends on one thing: what comes before the adjective. Once you can ask that single question, the endings fall into place. This guide gives you the three patterns, the tables, and a shortcut that works under exam pressure.

First: endings only happen before a noun

An adjective takes an ending only when it sits in front of a noun (attributive). When it comes after sein, werden, or bleiben, it takes no ending at all: Das Auto ist schnell, Der Wein war gut. So before you worry about endings, check the adjective is actually before a noun. If it is not, you are done.

The one question that picks the pattern

Before the adjective, is there a der-word, an ein-word, or nothing?

• der-words already show gender and case clearly: der, die, das, den, dem, dieser, jeder, welcher, alle.
• ein-words sometimes show it and sometimes do not: ein, kein, and the possessives mein, dein, sein, ihr, unser.
• Nothing: the adjective stands alone before the noun, often with uncountable or plural nouns (guter Wein, kalte Getränke).

The logic behind all three patterns is one rule: something in the phrase must show the case and gender. If the article already does it, the adjective can relax. If the article does not, the adjective has to step up.

Pattern 1: after a der-word (weak endings)

The definite article already marks everything, so the adjective only ever takes -e or -en.

Case	Masculine	Feminine	Neuter	Plural
Nom	der gute Mann	die gute Frau	das gute Kind	die guten Kinder
Akk	den guten Mann	die gute Frau	das gute Kind	die guten Kinder
Dat	dem guten Mann	der guten Frau	dem guten Kind	den guten Kindern
Gen	des guten Mannes	der guten Frau	des guten Kindes	der guten Kinder

Here is the shortcut worth memorising: the ending is -e in exactly five boxes (all three genders in the Nominativ singular, plus feminine and neuter in the Akkusativ) and -en in every other box. Learn those five, and the rest is automatic.

Pattern 2: after an ein-word (mixed endings)

ein and kein have no ending in three spots (masculine Nominativ, and neuter Nominativ and Akkusativ). In exactly those spots the adjective takes the strong ending to show the gender. Everywhere else it behaves like Pattern 1.

Case	Masculine	Feminine	Neuter	Plural (kein)
Nom	ein guter Mann	eine gute Frau	ein gutes Kind	keine guten Kinder
Akk	einen guten Mann	eine gute Frau	ein gutes Kind	keine guten Kinder
Dat	einem guten Mann	einer guten Frau	einem guten Kind	keinen guten Kindern
Gen	eines guten Mannes	einer guten Frau	eines guten Kindes	keiner guten Kinder

Notice the three endings that differ from Pattern 1: ein guter Mann, ein gutes Kind (Nom), and ein gutes Kind (Akk). Those are the spots where ein gives no clue, so the adjective supplies it. The possessives (mein, dein, and so on) and their plural forms follow this same table.

Pattern 3: no article (strong endings)

With nothing in front, the adjective has to carry all the information, so it takes the ending the definite article would have had. This is common with uncountable nouns and bare plurals: guter Wein, kaltes Wasser, frische Brötchen.

Case	Masculine	Feminine	Neuter	Plural
Nom	guter Wein	gute Milch	gutes Bier	gute Weine
Akk	guten Wein	gute Milch	gutes Bier	gute Weine
Dat	gutem Wein	guter Milch	gutem Bier	guten Weinen
Gen	guten Weines	guter Milch	guten Bieres	guter Weine

The endings match the der-word forms (der -> -er, das -> -es, dem -> -em), with one exception: the masculine and neuter Genitiv take -en, not -es, because the noun's own -s ending already marks the Genitiv.

Build one phrase, step by step

The tables are easier to trust once you see the decision in order. Say you want "with fresh rolls": mit ___ (frisch) Brötchen. Ask the three questions. Article? None. Case? mit forces the Dativ. Number? Plural. No article plus Dativ plural means the strong ending -en, so: mit frischen Brötchen. Now add an article: mit den ___ (frisch) Brötchen. The der-word den now shows the case, so the adjective relaxes to the weak -en: mit den frischen Brötchen. Same ending here by coincidence, but you reached it by rule, not by guessing.

The three most common ending mistakes

• No ending on an attributive adjective. ein gut Wein is wrong; before a noun the adjective must decline: ein guter Wein.
• Weak ending where the article gives no clue. ein gute Mann is wrong, because ein does not show masculine. The adjective has to: ein guter Mann.
• Forgetting the Dativ turns almost everything to -en. mit dem gute Wein is wrong; in the Dativ after a der-word it is always -en: mit dem guten Wein.

All three come from the same slip: not checking the article and the case before writing the ending. Make that check a habit and these disappear.

Why the cases still matter

Every one of these tables is organised by case, so you cannot pick the right ending until you know whether the noun is Nominativ, Akkusativ, Dativ, or Genitiv. If deciding the case is still the shaky part, fix that first with the guide to the four German cases, then come back. Adjective endings are much less frightening once the case is automatic. For the full set of exam grammar, see the German grammar guides, and because endings are marked closely in written tasks, the Schreiben writing guide shows where they cost points. The only way to make endings automatic is repetition, so drill short sets in the free grammar tools below rather than re-reading the tables.