French language Q&A Forum

I've always been confused by this: "j'aurai du" translates as "I should have" and not as "I will have had to...." but these are not quite the same, I think. "I will have had to catch the 22 bus" suggests that I did catch that particular bus, to achieve whatever, whereas "I should have" suggests that I didn't catch that bus, and perhaps failed in my intention. Similarly for "j'aurai pu" - "I could have" not "I will have been able".

Any advice/explanation appreciated!

“Je vais y aller avec toi.” Instead of (my version) “J’y vais aller avec toi.”

Thanks.