First conditional with if /when/ unless/ as soon as1. If +present simple+will/can/should/may and other modal verbs(real possibility in the future)

Example: If it rains, I will take my umbrella.

2. Unless means if not.

Example: Unless it rains,I will go to see her at her house.

3. When is used to show the situation is 100% certain.

Example: When I wake up tomorrow Ill have a shower.

4. As soon as is used to emphasise that an event happens immediately.

Example: Ill tell him as soon as I meet him at the office.

5. First conditional describes events that are always true.

Example: If supermarket trolleys are larger, people will buy more food.

6. Zero conditional is used to talk about things that are always true.

Example: If I have more much time, I go to the cinema.(a fact)

Example: If you smoke a lot, your health is at risk. (scientific fact).