Как по Английски будет waarvan

possessive determiner & pronoun

Belonging to or associated with which person.

Примеры использования:

Whose round is it?

pronoun

Used to ask which person owns or is responsible for something, or to say who is responsible for something

Примеры использования:

Whose bag is this?, i don’t care whose fault it is., that’s the house whose kitchen is painted purp…

relative adverb

Of what or which.

Примеры использования:

I know whereof i speak

adverb

Of which or what

Примеры использования:

She knows whereof she speaks (= she has direct experience or knowledge of what she is talking about…