Clauses with if, where, who, which

What are we learning today?

You will use if, where, who, which and that to give more information.

Explanation

• Use if for facts that are always true. Both parts use the present simple.
• Use where for a place.
• Use who for people.
• Use which for things.
• Use that for people or things.
• Use before and after to show what happened first.

Examples

1. If you heat ice, it melts.
2. A castle is a building which has big strong walls.
3. The man who lives next door is a vet.
4. After we ate, we left.

Remember!

• Do not use "who" for things.
• Do not use "will" after "if" in a fact.
• Do not forget who, which or that: not "A vet is a person helps animals".

Check yourself

1. Complete: "A vet is a person ___ helps animals." (who / which)
2. Complete: "A library is a place ___ you borrow books."