Questions & Answers about J'ai cherché mon téléphone, il avait glissé sous le siège.
Why do we use avait glissé instead of a glissé?
Avait glissé is the Plus-que-parfait (pluperfect) tense, which translates to "had slipped." We use this tense to show that an action happened before another action in the past. The phone slipped first, and then later you searched for it (ai cherché).
Doesn't glisser describe a motion? Why does it use avoir as its helper verb instead of être?
Why isn't it J'ai cherché pour mon téléphone, since in English we say "searched for"?
Why does the sentence use il when talking about a phone?