u/Bright-Membership585

so i recently learned how to use the imperative in french, but i have come across something that is confusing me that no website talks about. so obviously with the tu form of the verb the "s" is dropped for example "parle-moi" but the "s" stays if the pronouns "y" or "en" are there for example "parles-en". my question is there are verbs that are conjugated like er verbs but arent like offir where in the imperative they don't have an "s". but what if these verbs were followed by "y" or "en"? do i say "offre-en un!" or "offres-en un!"

I have rencently learned how to use the infintive in french, but htere is one thing that still bothers me. i have seen sentences from websites that say "voyager, c'est facile" and then other places say "etudier est bon". why does one take c'est and the other doesnt?

so to start, i would say i know how to use pronouns in french. i know their order, how each work etc, but i have come across a problem that no website seems to talked about and i will try my best to expalin it. if there are 2 pronouns 1 direct and 1 indirect but they are both people how does that work? for example " je vais me presenter a vous" or is it "je vais me vous presenter"? if its the first one why is it after a prepsotion? i hope u understand my question but no website seems to understand what i am looking for.