Breakdown of Mein Schlüssel ist gestern verloren gegangen.
sein
to be
der Schlüssel
the key
mein
my
gestern
yesterday
verloren gehen
to go missing
Questions & Answers about Mein Schlüssel ist gestern verloren gegangen.
Why does this sentence use ist ... gegangen instead of a passive phrase like wurde verloren?
While you could use the passive voice and say Mein Schlüssel wurde verloren (My key was lost), German frequently uses the fixed phrase verloren gehen as a more natural alternative to the passive voice. It works exactly like the English phrase 'got lost' or 'went missing', focusing on what happened to the object rather than who lost it.
Why is the helping verb ist used here instead of hat?
The core verb dictating the grammar in the phrase verloren gehen is gehen. Because gehen implies a movement or a change of state, it must form its Perfekt (past) tense with the helping verb sein. Therefore, we use ist instead of hat.
Is verloren an infinitive verb in this structure?
No, verloren is actually the past participle of the verb verlieren (to lose). In the expression verloren gehen, it acts like an adjective describing the state of the key, very similar to the word 'lost' in the English translation 'got lost'.
How do we know what order to put verloren and gegangen at the end?
In the Perfekt tense, the past participle of the action verb goes at the very end of the sentence. Since the action here is gehen (to go), its past participle gegangen takes the final spot, immediately following the state description verloren.
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