2 Giving Advice should /ought to had better Advise / recommend / suggest / warn / urgeIt is advisable / better … to …If I were …, I would …
3 Should / Ought to Subject + should (not) + verb (bare infinitive) Susan should drive carefully on a highway.Subject + ought + verb ( to-infinitive)Susan ought to drive carefully on a highway.Subject + ought not + verb (bare / to infinitive)Susan ought not to drive too fast.Susan ought not quarrel with her classmates again.
4 Had better Subject + had better + verb (bare infinitive) She had better explain these instructions clearly to her children.We do not use it talk about obligations in the pastAlways takes the form ‘had better’
5 Advise/Recommend/ Suggest/warn/urge (1) Pattern 1Subject + verb + object + to-infinitiveThe doctor advised the patient to take a complete rest.
6 Advise/Recommend/ Suggest/warn/urge (2) Pattern 2Subject + verb + object + preposition + nounHer father advised her against gambling.
7 Advise/Recommend/ Suggest/warn/urge (3) Pattern 3Subject + verb + that-clause (should/bare inf)Johnson recommended that we should leave him alone.