verlängern: haben or sein? Perfect tense: hat verlängert
In English: to extend, to lengthen · B1
The answer
In the Perfekt, verlängern takes: haben
- Perfekt auxiliary
- haben
- Partizip II
- verlängert
- Perfekt
- hat verlängert
Wortino stores one auxiliary per verb; some verbs can take both depending on the meaning.
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