Adjective endings

The big idea: the signal shows up once

ShortcutThe gender–case signal appears exactly once in the phrase. If the article carries it, the adjective just takes -e or -en; if there is no article, the adjective carries the signal.

Look at these three phrases first. Same adjective, same noun, three different endings — and you can see exactly why it changes:

• der gute Wein the good wine ARTICLE CARRIES THE “R” → ADJECTIVE RELAXES: -E
• ein guter Wein a good wine “EIN” IS BARE → ADJECTIVE TAKES OVER THE “R”
• guter Wein good wine NO ARTICLE → ADJECTIVE CARRIES THE “R”

In all three, that little -r does the same job: it says “this word is masculine and in the nominative.” The only thing that changes is who carries it. German never shows this signal twice, and never skips it.

What grammar books call “weak, mixed and strong declension” are exactly these three situations. You don’t need to memorise the names — there is only one question: does the article carry the signal or not?

Why English gives you no help here

Let’s be honest: English adjectives never change. the big house · the big houses · in the big house · the big house’s roof — “big” every time. So this whole system feels completely foreign, and that’s fair.

But English has a tiny cousin of the same reflex: a becomes an depending on the word next to it — “a house”, “an apple”. Nobody handed you a table, and you still get it right, because the little word adjusts to its neighbour.

The German adjective ending works on the same principle: it looks at what stands before it. If an article that already carries the signal is there, it relaxes; if not, it does the job itself. The mechanism is familiar — only the trigger is different.

Situation 1 — with an article: only two endings

der · die · das · dieser · jeder · welcher — all of these carry the signal. The adjective has nothing left to do and only two endings are used: -e and -en.

So the rule fits in one sentence: the three Nominativ singulars and the feminine and neuter Akkusativ take -e; everything else takes -en. Five cells -e, seven cells -en.

• Der neue Lehrer kommt. The new teacher is coming. NOM · MASC → -E
• Ich sehe den neuen Lehrer. I see the new teacher. AKK · MASC → -EN
• Ich helfe dem neuen Lehrer. I’m helping the new teacher. DAT → -EN

When you’re speaking, you have no time to work it out. Practical shortcut: if you’re unsure, say -en. Seven of the twelve cells in this table are -en anyway, so even a blind guess is right more than half the time.

Situation 2 — with ein: three cells change, the rest stay the same

The ein · kein · mein · dein · sein · ihr · unser family. The problem: in three places ein is bare — it takes no ending, so it doesn’t carry the signal. In those three places the adjective steps in.

Why exactly those three? Because ein stands without an ending in exactly those three places: ein Wein · ein Bier. Compare: eine Milch, einen Wein, einem Bier — those have an ending, so the adjective can relax.

Situation 3 — no article: the adjective becomes the article

The third situation is the easiest, and the least taught. With no article at all, the adjective takes the article’s own ending. The -r of der and the -s of das move straight onto the adjective.

Where will you meet this? With uncountable nouns and plurals — in the kitchen, at the shop, on the menu. Talking without an article is half of everyday German:

• Ich trinke kalten Kaffee. I’m drinking cold coffee. AKK · MASC → -EN
• Wir essen frisches Brot. We’re eating fresh bread. AKK · NEUTER → -ES
• Sie kauft grüne Äpfel. She’s buying green apples. PLURAL → -E
• mit heißem Wasser with hot water DAT · NEUTER → -EM

The part nobody tells you: where the adjective does not change

All these tables apply only to an adjective that comes BEFORE the noun. When the adjective comes after the verb, it never changes — which is something learners get right without noticing, and then ruin.

The same holds when the word works like an adverb: Er spricht gut Deutsch. — here gut describes the verb, it doesn’t attach to a noun, so it stays bare.

So in half of your sentences you won’t use these tables at all. In the pattern “X is good · X is pretty · X is expensive” the adjective is always bare. The tables only kick in when you put the adjective in front of the noun.

What to do this week

This topic won’t stick by memorising tables — nobody can hold forty-eight cells in their head. The only way to build the reflex is to say the same noun in all three situations.

• Pick a noun (der Kaffee) and an adjective (stark).
• Say the three situations back to back: der starke Kaffee · ein starker Kaffee · starker Kaffee.
• Then switch to the Akkusativ: Ich trinke den starken / einen starken / starken Kaffee.
• The next day, repeat with a feminine noun (die Milch · frisch), then a neuter one (das Brot · warm).
• If you get stuck while speaking, say -en and keep going. Stopping to think costs you more than a wrong ending.

We cover comparing adjectives (besser · am besten) separately on the comparing adjectives page — the -er you learn there is a comparison ending, while the -er here is an agreement ending. Same letters, completely different job: ein besserer Wein — both sit side by side in the same word.