一、现在时
1、例句：If I go to school now, I should not be late.
翻译：如果我现在就去学校，应该不会迟到。
2、例句：If I want to go with you, will you take me with you?
翻译：如果我也想跟你一起去，你会带上我吗？
二、过去时
1、例句：If I had finished my homework yesterday, I could go out and play with you today.
翻译：如果我昨天把作业写完，今天就可以和你们一起出去玩了。
2、例句：If you're ready to go home a few days ago, you don't have to be busy today.
翻译：如果你前几天就做好回家的准备，也不至于今天忙手忙脚。
三、将来时
1、例句：If you don't come tomorrow, I'll go to my grandmother's house.
翻译：如果明天你不来，我就去外婆家了。
2、例句：If you borrow my toy next week, I need other toys to kill time.
翻译：如果下周你把我的玩具借走，我需要其他玩具来打发时间。
if，英 [ɪf] 美 [ɪf]
连接词（conj.）即使、如果，倘若、是否、假设。
名词（n.）：条件，设想。
复数： ifs