The words whoever, whatever, whichever, however, whenever and wherever are called compound relative pronouns. These are used to mean ‘it doesn’t matter who/what/which etc.’

A condition may be expressed in several different ways.

By using if

If you heat ice, it melts.
If you work hard, you will succeed.
If it rains, the match will be canceled.

The expressions whoever and whatever are used to express surprise or difficulty in believing something.

Who ever is that cute girl with Peter?
What ever are you doing there?
How ever did you manage to solve that problem? I couldn’t.

Omission of the relative pronoun

The relative pronoun is usually omitted when it is in the accusative case.

Few and short were the prayers (that) we said.
I am the monarch of all (that) I survey.

Concession or contrast may be expressed in several different ways. Study the following examples carefully.

By using though and although

Note that both though and although mean the same.