German Declension Trainer
Articles and adjective endings after der and ein in Nominativ, Akkusativ, Dativ and Genitiv. Real sentences, a timer, and a map of the forms that are already automatic.
Einstellungen · Nom. Akk. Dat. · der+ein · Tippen
Why adjective endings need drilling, not memorising
Many learners can recite the declension table and still say „mit dem neue Auto“ in conversation. Knowing the table and using it at speaking pace are two different skills. The second comes from many short, fast repetitions with immediate feedback.
The trainer covers 32 fields: four cases, three genders and the plural, after der-words (der, dieser) and after ein-words (ein, kein, mein). Each task is a real sentence in which the verb or preposition decides the case — helfen and mit take the Dativ, für and kennen the Akkusativ — so you learn to spot the signal as well as the ending.
How the trainer chooses what you practise
Every answer is timed. A field counts as automatic when your last five answers in it were right and at least four came within 3.5 seconds. A field you get wrong comes back three tasks later in another sentence, and the progress map shows which of the 32 fields still need work. With an account, your progress is saved on every device.
Frequently Asked Questions
- What is the difference between adjective endings after der and after ein?
- After der, die, das (and dieser, jeder, welcher) the article already shows case and gender, so the adjective only takes -e or -en: -e in the nominative singular and in the accusative feminine and neuter, -en everywhere else. After ein, kein and possessives (mein, dein …) the article has no ending in three places — ein Mann (nominative masculine) and ein Kind (nominative and accusative neuter). There the adjective takes over the ending: ein junger Mann, ein kleines Kind. Everywhere else the endings match the der pattern.
- Which case comes after mit, für, helfen or geben?
- mit, bei, nach, von, zu, aus and seit always take the Dativ; für, ohne, durch, gegen and um always take the Akkusativ. Verbs such as helfen, danken, gehören and antworten take a Dativ object, while haben, brauchen, sehen, kaufen and kennen take an Akkusativ object. With geben, zeigen and schenken the person (wem?) is in the Dativ and the thing (was?) in the Akkusativ. In, an and auf take the Akkusativ for direction (wohin?) and the Dativ for location (wo?).
- Why does the noun get an -n in the dative plural?
- In the dative plural the noun itself adds -n: mit den Kindern, meinen Freunden. Plurals that already end in -n or -s do not change: den Frauen, den Autos.
- When does the trainer consider a form automatic?
- Each of the 32 fields (case × gender × der/ein group) keeps your last answers. A field is automatic when the last five were right and at least four came within 3.5 seconds when tapping, or 7 seconds when typing. Fields you miss are repeated three tasks later in a different sentence and are chosen more often until they are solid.
- Is my progress saved?
- Without an account, progress stays in your browser on this device. With a free mitDeutsch account, the per-field progress and the history of your rounds are saved to your account and follow you to every device.
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