French language Q&A Forum

If I am recalling something from the past, do I need to use PC or imparfait?

For eg: I got down from the train that day.

Je me suis descendu du train ca jour

OR

Je descendais du train ca jour?

Which one is correct?

Are there any specifications in futur proche. For example, in passé compose when conjugated with être, if the sujet is feminin then we have to add an “e” to the passé form of the verb

 I am reading "Le Petit Prince" and noticed that sometimes, passé composé is used in the description (NOT the dialogue)  instead of passé simple. In simple sentences like "J'ai ainsi vécu seul" and "J'ai vu un petit bonhomme tout à fait extraordinaire". 

There are instances where you can (or *have to*???) use passé composé in literature? I can't find any pattern so can someone explain this to me?