It really depends. If you are talking about a specific detail that happened in the past, or an activity you used to do continuously in the past, you use imparfait or to describe a singular event that happened (Last year, last week, last Sunday etc.) you use passe compose avec avoir or etre as your auxiliary verbs.
The following are the verb endings for imparfait -
-ais, ais, ait, ait, ions, iez, aient
To form the passe compose avec avoir/etre you have the pronoun (je, tu, il, elle, nous, vous, ils, elles) followed by the auxiliary present tense of avoir/etre and the past participle.
Hi,
J'ai grossi pendant les vacances de Noël.
use google translate Explanation:horizontal 1.colors of the Quebec flag 4.
they make up most of Canada's vegetation 8. french explorer who discovered Quebec. don't know the rest yet
1. Je vais à la plage.
2. J'irai camper pendant les vacances d'été.
Hope this helps!