FRENCH HELP merci beaucoup!

You only add agreements if you’re using être as the auxiliary. For example: “nous sommes arrivés” is correct and “nous avons bu” is correct but adding an agreement to the second sentence would be incorrect

thank you. what dyu exactly mean by second sentence?

I mean that in “nous avons bu” you can’t add agreements because that doesn’t work in French

thank you. what dyu exactly mean by second sentence?

When you use the perfect tense with avoir, there is (usually) no agreement, so you write nous avons bu, not nous avons bus.

It gets a bit more complicated than that sometimes, but don't worry too much about that.

so lets say nous avons pris is correct?

The perfect tense with avoir only adds agreements if the verb proceeds the noun. For example la banane que j’ai mangée has another e because banane is feminine. Or les chaussures qu’elles ont achetées adds an e and s because chaussures is feminine plural. If you used j’ai vu un film or le film que j’ai vu there’s no difference. Contrarily, être always agrees in the perfect tense, eg la fête s’est déroulée chez lui (the party was at his house) nous nous sommes rendus au cinéma (we went to the cinema) etc.

Yeah that would be correct