Quick answer: Here are 10 first conditional sentences and 10 sentences with unless. They use easy words and short forms.
10 First Conditional Sentences
- If it rains, we will stay home.
- If you study, you will pass the test.
- If I have time, I will call you.
- If she is late, we will wait for her.
- If we miss the bus, we will walk.
- If he works hard, he will get better.
- If you are hungry, I will make a sandwich.
- If they come early, we will start the game.
- If it is sunny, we will go to the park.
- If you help me, I will finish fast.
10 Sentences with Unless
- Unless it rains, we will play outside.
- Unless you hurry, you will miss the bus.
- Unless I get paid, I will not buy the bike.
- Unless she studies, she will not pass the test.
- Unless we leave now, we will be late.
- Unless you speak slowly, I will not understand you.
- Unless he says sorry, I will not talk to him.
- Unless they call, we will not wait.
- Unless it gets cold, we will not need coats.
- Unless you charge your phone, it will die.
Key idea
For the first conditional, use:
If + present simple, will + base verb
Example: If it rains, we will stay home.
Unless means if not:
Unless + present simple, will + base verb
Example: Unless it rains, we will play outside. = If it does not rain, we will play outside.
Quick check
- All sentences use the present simple after if/unless.
- The main clause uses will.
- Unless already includes the negative meaning, so do not say “unless it doesn’t rain.”