Omitting relative pronouns

He's the man that I told you about.

• We can omit the relative pronoun

• We can't omit the relative pronoun

That's the car which I am thinking about buying.

• We can omit the relative pronoun

• We can't omit the relative pronoun

She was the person who saw it first.

• We can omit the relative pronoun

• We can't omit the relative pronoun

The email that I sent didn't reach everybody.

• We can omit the relative pronoun

• We can't omit the relative pronoun

The flight which we were supposed to take was cancelled.

• We can omit the relative pronoun

• We can't omit the relative pronoun

Nothing that she does shocks me now.

• We can omit the relative pronoun

• We can't omit the relative pronoun

There is no one whom I trust more.

• We can omit the relative pronoun

• We can't omit the relative pronoun

He's not the sort of person that everyone likes.

• We can omit the relative pronoun

• We can't omit the relative pronoun

It's something that I don't want to think about.

• We can omit the relative pronoun

• We can't omit the relative pronoun

He's the one that took it.

• We can omit the relative pronoun

• We can't omit the relative pronoun