If you want to obtain this drug, you must venture into the rainforest, where the tree exclusively grows.

If people have little money for leisure, they often find themselves with ample leisure time.

If he refuses to tell her the truth, it's no wonder she's so angry with him.

If we haven't seen our friends in ten years, the anticipation of their visit this weekend is palpable.

If you don't ride your bike carefully, you might end up having an accident.

If I did my homework, my teacher wouldn't always get angry with me.

If you attend the class regularly, passing the test will be a breeze.

If you leave home now, you'll miss the flight.

If I were good at cooking, I could become a chef.

If you ride your bike carelessly, you might have an accident.

If she had friends, she wouldn't feel lonely.

If Katie didn't work so much, she wouldn't usually be tired.

If the boy didn't eat so many snacks, he wouldn't be so fat.

If we had time, we could attend English class.

If he didn't have a weak heart, he might watch horror films.

If you spent more time reading English books, you would improve your language skills.

If Mai didn't often talk to foreigners, she wouldn't be fluent in English.

If I knew German, I could reply to his email.