A1–A2 verbs conjugation grammar offline
Flapjugation
Flappy Bird, but for German verb conjugation.
You steer a bird through a gap by choosing the correct present-tense form of a German verb, covering all six persons. The game uses high-frequency verbs that appear often in everyday German.
Run high-volume reps under time pressure on the verbs you'll actually use (sein, haben, gehen, sehen, lesen, sprechen, etc.) and tie each form to its pronoun. Flapjugation does exactly that: a pronoun is shown, conjugated forms fly past, and you have to fly into the one form that matches - which is the same call your brain has to make every time you open your mouth in German.
All six grammatical persons - ich, du, er/sie/es, wir, ihr, and the formal Sie - in the present tense (several of these pronouns share the same verb form). The pronoun changes after a streak of correct hits, so a single session will cycle you through all of them more than once.
Strong verbs are defined by their principal parts (gehen - ging - gegangen), and only some of them change their stem vowel in the du/er forms - gehen and kommen, for instance, are actually regular in the present tense. The verbs worth drilling until they're automatic include sein, haben, werden, wissen, gehen, kommen, sehen, lesen, essen, sprechen, fahren, geben, and nehmen - they show up in nearly every sentence, and they're all in the Flapjugation pool.
With 5–10 minutes of focused daily conjugation drilling, many learners notice they pause less mid-sentence after a few weeks. People learn at different speeds, but daily reps under light time pressure tend to do more than long study sessions.
Regular (weak) verbs follow a fixed pattern: stem + -e/-st/-t/-en/-t/-en (machen → ich mache, du machst…). Strong verbs are defined by their principal parts rather than a single rule, and a subset of them change their stem vowel in the du and er/sie/es forms (lesen → du liest, er liest) - though others, like gehen and kommen, stay regular in the present tense. This set covers many high-frequency verbs, which is why drilling them pays off.
Flapjugation is present-tense only - that's the foundation everything else sits on. Once present feels automatic, layer in Perfekt (ich habe gemacht / ich bin gegangen), the past tense Germans actually use in conversation. See the past-tense practice hub for dedicated reps on Perfekt and Präteritum.