Đâu là sự khác biệt giữa which ever và what ever ?Hãy thoải mái đưa ra các câu ví dụ nhé.

Whichever is used when there are options that have been stated.

For example
A: Do you want to have Subway or McDonald's for dinner?
B: Whichever.

But in the example above you can also use whatever which means you don't care which one is chosen.

A: What do you want for dinner?
B: Whatever

In this instance you can whatever which also has the meaning of you don't care what you eat, just anything. Mostly people say this if they don't care and they don't want to make a decision about it.

In the second example you can't say whichever because there are no options to choose from.