As one of those apping a BB (mine would be the Rémy that has been mentioned), I can safely say that I know next to nothing about about french. in fact the one phrase i can remember serves me no use at all 'parlez vous francais'... because y'know idk any french.
have actually talked about it a lot with patricia and basically i'm just going the way she suggested to me... but for some phrases i'll prolly use google translate, but in any log or journal entry i'll be making sure to put a note that i'm using that, because the darn thing is not always super reliable and definitely wouldn't want to offend anyone.