Anyone: whoever
Whoever would like to go should leave now.
To/from/by/with anyone: whomever
You should go with whomever you want.
(used as an object or object of a preposition)
Anything: whatever
You should do whatever you want.
Whatever you do be careful.
Any one of the…/any of the…: whichever
You should choose whichever (one) you
want.
Anytime: whenever
You should go whenever you need to so that
you won’t be late.
Anyplace: wherever
We will go wherever you go.
In any way/in any manner: however
We will get there however we can. (by car,
bus, taxi, boat, etc.)