Breakdown of Ho dovuto cancellare il volo per questo motivo.
questo
this (masculine)
per
for / in order to / because of
dovere
must
il volo
the flight
Questions & Answers about Ho dovuto cancellare il volo per questo motivo.
Why do we use 'ho' (avere) with 'dovuto' here instead of 'sono' (essere)?
When a modal verb like dovere (to have to) is followed by an infinitive, it 'borrows' that action verb's helper. Because cancellare takes avere (e.g., ho cancellato), the modal verb dovere must also take avere, making it ho dovuto cancellare.
Can I change the word order and say 'ho cancellare dovuto'?
No, the word order is very strict in the passato prossimo. You must use the helper verb (ho), then the past participle of the modal verb (dovuto), and finally the infinitive of the action verb (cancellare).
I also know the word 'ragione' for reason. Could I use that here instead of 'motivo'?