`1`. My younger sister asked if I could lend her some money.
`->` S + asked + O + if + S2 + V lùi thì
`2`. If I were tall enough, I would join the basketball team.
`->` If 2: If + S2 + V2/ed, S2 + could/would + Vinf
`3`. If we don't hurry up, we will be late for the exam.
`=` If we hurry up, we will not be late for the exam.
`->` If 1: If + S1 + Vs/es, S2 + will + Vinf
`4`. If he hadn't gone out last night, he wouldn't have been punished.
`->` If 3: If + S1 + had + Vpp, S2 + would have + Vpp
`5`. I wish the weather hadn't been very bad yesterday.
`->` Câu mong ước nên lùi thì chuyển khẳng định sang phủ định