Ex 7:

1. If she should come, tell her to wait for me. (using inversion with SHOULD)

⇒Should she come, tell her to wait for me.

2. If I don’t come here early, I will miss the bus

⇒Unless I come here early, I will miss the bus.

3. If he doesn’t do that, he will get bonus.

⇒Unless he does that, he will get bonus.

4. If she doesn’t water these trees, they will die

⇒Unless she waters these trees, they will die

5. I only come if they invite me.

⇒Unless they invite me, I will not come

6. In case it rains, we’ll stay at home. (if)

⇒If it rains, we’ll stay at home

7. If you don’t leave the office, I will call the police. (or)

⇒Leave the office or I will call the phone

8. You can’t visit Paris unless you get a visa. (If)

⇒If you don’t get a visa, you can’t visit Pari

Cấu trúc: 

+) Unless + S + V (simple present), S + will/can/shall + V.

+) Unless + S +Ved / V2 (simple past), S+ would + V.