пока мы были в отпуске,очень часто

пока мы были в отпуске,очень часто шел дождь

Результаты (английский) 1:

while we were on holiday, very often went rain

Результаты (английский) 2:

While we were on vacation, it rained very often

Результаты (английский) 3:

As long as we were on vacation,very often it was raining