Grammar Rules _ Speak Good English Movement

Whom is used only as the object of a verb. Both who
and whom can be the object of a preposition but if the
preposition comes before the pronoun, you must use
whom. This is illustrated in the examples below.
E.g.
• Whom/who did you speak to about this matter?
• To whom did you speak about this matter?
The relative pronoun that can often be used instead of
who, whom and which.
E.g.
• The shirt that Matthew bought has some stains on it.
Note: American English favours the use of that over
which while British English still uses both that
and which.
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