Case Mnemonics

Classic German rhymes, tricks, and patterns to memorize the cases.

The case questions

The fastest way to identify a case is to ask the right question. Memorize these three questions and you can figure out any sentence.

Wer oder Was? → Nominativ

Who or What (is doing the action)?

Example: "Der Mann trinkt Kaffee." → Wer trinkt Kaffee? → Der Mann (Nominativ).

Wen oder Was? → Akkusativ

Whom or What (is being acted upon)?

Example: "Ich sehe den Hund." → Wen sehe ich? → Den Hund (Akkusativ).

Wem? → Dativ

To whom? For whom?

Example: "Ich gebe dem Kind das Buch." → Wem gebe ich das Buch? → Dem Kind (Dativ).

The masculine article trick: R → N → M

Only masculine articles change across all three cases. The last letter follows a simple pattern: r → n → m. This one trick covers most of what you need.

der → den → dem

Nominativ → Akkusativ → Dativ (definite)

The definite article: der Mann (Nom) → den Mann (Akk) → dem Mann (Dat). Just change the last letter: r, n, m.

ein → einen → einem

Nominativ → Akkusativ → Dativ (indefinite)

The indefinite article: ein Mann (Nom) → einen Mann (Akk) → einem Mann (Dat). Same endings: n, n, m.

Akkusativ prepositions: FODGU

These five prepositions always take Akkusativ. The mnemonic FODGU groups them by first letter. Some students also use the rhyme below.

Für, Ohne, Durch, Gegen, Um

for, without, through, against, around

FODGU — say it like a word: "fod-goo." After any of these five, always use Akkusativ.

"Für, ohne, durch, gegen, um —
Akkusativ, geh nicht darum!"

"For, without, through, against, around — you can't get around the Akkusativ!"

darum = around it. This rhyme works because "um" at the end rhymes with "darum." The message: don't try to avoid it — just learn these five!

Dativ prepositions: the classic rhyme

These seven prepositions always take Dativ. German students have been singing this rhyme for generations — it's the most famous German grammar mnemonic.

"Aus, bei, mit, nach, seit, von, zu —
immer mit dem Dativ, du!"

"Aus, bei, mit, nach, seit, von, zu — always with the Dativ, you!"

Say it with a rhythm: AUS-BEI-MIT (pause) NACH-SEIT-VON-ZU (pause) IM-MER-MIT-DEM-DA-TIV-DU! — it has a natural beat, like a chant.

Aus = from/out of · Bei = at/near · Mit = with · Nach = after/to · Seit = since · Von = from · Zu = to

The seven Dativ prepositions with their meanings.

Whenever you see one of these words, the noun that follows must be in Dativ: mit dem Bus, von meiner Schwester, zum Arzt (zu + dem).

Two-way prepositions: Wo or Wohin?

Nine prepositions can take either Akkusativ or Dativ. The rule: Wo? (where? = location, staying put) → Dativ. Wohin? (where to? = movement, direction) → Akkusativ. Think: standing still = Dativ, moving there = Akkusativ.

"An, auf, hinter, in, neben,
über, unter, vor, zwischen —
Wohin? Akkusativ. Wo? Dativ."

on, on top of, behind, in, next to, over, under, in front of, between

Nine prepositions, one rule. Memorize the list by going around a room: an der Wand (on the wall), auf dem Tisch (on the table), hinter dem Schrank (behind the cupboard)...

Wo? Die Katze schläft auf dem Sofa.

Where? The cat sleeps on the sofa. (Location → Dativ)

das Sofa (neutrum). "Dem" because the cat is already on the sofa — she's staying there (Wo?), not moving to it. Location = Dativ: das → dem.

Wohin? Die Katze springt auf das Sofa.

Where to? The cat jumps onto the sofa. (Direction → Akkusativ)

das Sofa (neutrum). "Das" stays because the cat is moving onto the sofa (Wohin?). Direction = Akkusativ: das stays das (neutrum doesn't change in Akk).

Verbs with Dativ: the tricky ones

Most verbs take Akkusativ. But some common verbs always take Dativ — and there's no logical pattern, so you must memorize them. This sentence uses many of them at once:

"Helfen, danken, gefallen, gehören,
schmecken, fehlen, antworten —
diese Verben brauchen Dativ!"

"Help, thank, please, belong to, taste, miss, answer — these verbs need Dativ!"

In English these all look like they'd take a direct object ("I help him"), but in German they take Dativ: "Ich helfe ihm" (not *ihn).

"Gefallen und schmecken drehen den Satz um!"

"Gefallen and schmecken flip the sentence around!"

In English: "I like the book." In German the book is the subject: "Das Buch gefällt mir." (The book pleases to-me.) Same with schmecken: "Die Suppe schmeckt mir." (The soup tastes good to-me.) The thing you like does the action — you receive it in Dativ.

"Sein" keeps both sides Nominativ

The verbs sein (to be), werden (to become), and bleiben (to stay) are linking verbs — they describe identity, not action. Both sides stay Nominativ. Think of "sein" as an equals sign.

"Sein, werden, bleiben —
Nominativ auf beiden Seiten!"

"Sein, werden, bleiben — Nominativ on both sides!"

auf beiden Seiten = on both sides. This is why "Er ist der Lehrer" uses "der" (not "den") — the noun after "sein" stays Nominativ because it's not an object, it's an identity.

Er ist der Lehrer. ✓ (not: Er ist den Lehrer ✗)

He is the teacher. (Both "er" and "der Lehrer" are Nominativ.)

Compare: "Ich sehe den Lehrer" (Akkusativ — because "sehen" is an action verb with a direct object). But "Ich bin ein Lehrer" — here "ein" is Nominativ, not Akkusativ (they happen to look the same for maskulin).

The Dativ plural -n rule

In Dativ plural, two things happen: the article becomes den, and the noun adds -n at the end (unless it already ends in -n or -s).

"Im Dativ Plural, denk daran:
den + Nomen + n!"

"In Dativ plural, remember: den + noun + n!"

denk daran = remember (literally: think of it). Examples: die Kinder → den Kindern, die Freunde → den Freunden. But: die Autos → den Autos (already ends in -s, no extra -n).

How to use these mnemonics

Don't try to memorize everything at once. Start with the three questions (Wer? Wen? Wem?) and the masculine r-n-m pattern — these two alone solve most cases. Then add the preposition rhymes when you're ready. Say them out loud — rhythm makes them stick.

The most important one: "Aus, bei, mit, nach, seit, von, zu — immer mit dem Dativ, du!" Every German student knows this by heart.