RELATIVE CLAUSES - WHO, WHICH, THAT

RELATIVE CLAUSES
SUBJECT ( WHO / WHICH / WHAT)
Realtive clause tells you more about a person thing
WHO / THAT = the relative clause for people begins with who or that.
WHICH/ THAT = when are talking animal or thing
Note: who, that, which are relative pronouns.

OBJECT (SHOM (SHO), WHICH, THAT, NO RELATIVE)
WHOM (WHO) / NO RELATVIE
David: did you see the man?
John: which man?
David: Rcihard met the man last week.
We can put in one sentence.
Did you see the man whom Richard met last week:?
Whom replaces the man as the object of met
But:
In conversation we don´t usually use whom. We can replace whom with who.
Did you see the man who Richard met last week?
Or with no relative
Did you see the man Richard met last week?