1. if I had learnt harder, i would have been better. (be)

2. If they stayed at home, they wouldn't know what happened. (stay)

cấu trúc câu điều kiện:

+)If + S + V(s,es), S+ V(s,es)

+)If + S + V(s,es), S + Will/Can/shall…… + V

+)If + S + V2/ Ved, S +would/ Could/ Should…+ V

+)If + S + Had + V(pp)/Ved, S + would/ could…+ have + V(pp)/Ved

+)If + S + had + V3/Ved, S + would + V

có gì sai nói mik ạ ^^

` color[red][@NTM] `

1. If I had learnt harder, I would have been harder

-> Câu Điều Kiện Loại 3: If + S + Had + V(pp)/Ved, S + would/ could…+ have + V(pp)/Ved

2. If they stayedat home, they wouldn't know what happened.

->Câu Điều Kiện Loại 2: If+S+V-ed/V2, S+ would/could/might+Vo