verfallen: haben or sein? Perfect tense: ist verfallen
In English: to decay, deteriorate; to expire (of a deadline/ticket) · A2
The answer
In the Perfekt, verfallen takes: sein
- Perfekt auxiliary
- sein
- Partizip II
- verfallen
- Perfekt
- ist verfallen
Wortino stores one auxiliary per verb; some verbs can take both depending on the meaning.
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