Whatever, whichever, wherever, however, whoever
A question word followed by ever is used to say that it doesn't matter what, which, where, how or who: the result is the same.
E.g.
Do whatever you want— Haz lo que quieras
Whatever you say, I'm getting married-— Digas lo que digas, me caso
Whichever way you look, you find idiots— Mires por donde mires, encuentras tontos
Which one do you want? - Whichever— ¿Cúal quieres?- Cualquiera
Wherever you go, don't forget to take your camera— Vayas a donde vayas, no te olvides de llevar tu cámara
Do it however you want— Hazlo como quieras
However hard you try, you will never be as good as me— Por mucho que te esfuerces nunca serás tan bueno como yo