1. Joining sentences with Relative Pronouns The boy has hurt his leg. He fell on the stairs just now. The boy who fell on the stairs just now has hurt his leg.

2. Joining sentences with Relative Pronouns That is the man. His dog barked at us. That is the man whose dog barked at us.

3. Joining sentences with Relative Pronouns I have broken the mirror. You lent it to me. I have broken the mirror which you lent me.

4. Joining sentences with Relative Pronouns “who” and “whom” are only used for people “whose” is used as a possessive “which” is used for animals and things “that” is used for people, animals and things.

5. Joining sentences with Relative Pronouns The lady _______ you saw in the shop is my teacher. Who did you see? I saw her. If you need to answer using "her" (instead of "she"), then the correct relative pronoun should be "whom".

6. Joining sentences with “whom” The uncle whom I am living with has six children. “whom” is like a sandwich between TWO nouns.