Wortino

frühstücken: haben or sein? Perfect tense: hat gefrühstückt

In English: to have breakfast · B1

The answer

In the Perfekt, frühstücken takes: haben

Perfekt auxiliary
haben
Partizip II
gefrühstückt
Perfekt
hat gefrühstückt

Wortino stores one auxiliary per verb; some verbs can take both depending on the meaning.

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