[ابن سيناء]

1- You should study hard. حاضر او مستقبل ))
*You should have taken the medicine. ( ماضى)
2-You ought to study hard. حاضر او مستقبل ))
*You ought to have taken the medicine. ( ماضى)
3- You are supposed to study hard. حاضر او مستقبل )) 16
* You were supposed to take the medicine. ( ماضى)
4-I advise you to study hard.
5- My advice to you is to study hard.
6-It is advisable for you to study hard.
7- If I were you I would study hard.
8-You had better study hard.
9-It is a good idea to study hard.