These are the pronouns used to begin a subordinate clause as it indicates the relationship of the subordinate clause to the rest of the sentence. defining and non defining relative clauses exercises.

1. RELATIVE PRONOUNS
These are the pronouns used to begin a subordinate
clause as it indicates the relationship of the
subordinate clause to the rest of the sentence.
e.g. whom, who, whose, that, which, what, whatever,
whomever, whoever etc.
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They describe the preceding noun.
There is no comma (,) between the noun
& the defining relative clauses. Thus it
has the function of defining the object
being referred to. e.g. The man who is
wearing named clothes is an idiot.
DEFINING
RELATIVE
CLAUSES
The person who secured highest marks in DU was
tea vendor.
The person whom I visited was a cow-protector.
The man whose wife doesn't live with him is very
upset.
EXAMPLES
Uneasy lies the head that wears a crown.
This is the blog that I told you about.
All that glitters is not gold.
What is it that paid social activists can't solve.
The NCERT book which I purchased has communal
content against minorities.
The boy to whom I sent iPhone X is very glad.
NON
DEFINING
RELATIVE
CLAUSES
When a relative clause merely describes
an object to which the speaker or writer
is referring. The clause must be placed
between commas. e.g. The car, which
has three intersecting circles is known
as Audi.
What our PM said is always a lie.
Fakendra Rovi says whatever comes to his mind.
The Government will select whomever it pleases.
Give more examples