A1/A2 sentence structure word order syntax perfekt past tense questions verbs grammar offline
Sentence Slots
Build correct German sentences one slot at a time.
Five slots stand for five positions in a German sentence: subject, verb, object, adverbial and ending. You spin or set each slot and check whether the five parts form a correct German sentence. The recurring vocabulary lets you focus on word order, Perfekt, questions and modal verbs.
It teaches German sentence structure for six A1–A2 patterns: Perfekt with haben (Der Mann hat die Pizza gegessen), Perfekt with sein (Die Frau ist zum Arzt gefahren), modal verbs (Das Kind kann das Essen bestellen), W-questions (Warum isst der Mann mit meiner Tante?), yes/no questions (Schläft die Frau in der Küche?) and yes/no questions with modals (Muss der Hund im Haus schlafen?). Each reel is one slot in the sentence - subject/question word, verb, object, adverbial, ending - so word order is built into the mechanic.
Every word in every reel position is hand-picked, and a spin only counts as a win if the exact combination matches one of the pre-defined valid sentences. Wrong word order, wrong verb form, wrong auxiliary - all losses. You see green for correct sentences and red for broken ones, and after enough spins your brain starts predicting which combinations will win before the reels even stop. That's pattern recognition doing the work of a grammar table.
Between spins you can manually flick any reel up or down with a swipe or mouse drag to scroll through the words in that position. Once all five reels have settled, a Check button appears - tap it to see whether your hand-built sentence is grammatically valid, with no effect on your score. It's the low-stakes sandbox where most of the actual learning happens: you start hypothesising, testing, and quietly figuring out the rules of German word order on your own.
Two reasons. First, the reels stop one at a time from left to right, which mirrors German word order: whatever comes first (a subject or a question word) is followed by the finite verb in second position, then object, then adverbial, then ending. Your brain is being trained to expect the structure in the right order. Second, the scoring creates just enough stakes to keep attention high without panic, which is the sweet spot for pattern learning.
Six sentence types: Perfekt mit haben and mit sein, W-questions, yes/no questions, sentences with modal verbs, and yes/no questions with modals. That gives you a wide slice of A1 to A2 sentence structure and a lot of valid combinations to build.
A1 and A2. The vocabulary is deliberately narrow (a recurring cast of subjects, verbs, objects and places) so learners can focus on structure rather than new words. Absolute beginners get their first taste of how German sentences are built; A2 learners get the most out of the modal-verb and Perfekt mit sein sentences.