... Perfect progressive Have to + bare inf. Had to + bare inf. Must + bare inf. Must / Had to + bare inf. Will / can/ might + bare inf. Would/ could/ should + bare inf. Ought to/ should/ would/ ... báo , xin lỗi, khuyên bảo ... chúng ta có thể áp dụng các cấu trúc s.dụng To Inf. hoặc Gerund . Cụ thể: * verb + O + to inf ( advise/ tell/ ask/ order/ want/ warn/ encourage/ beg/ remind ...) Ex: ... told me, “ If I were you, I wouldn’t believe him” She advised me not to believe him * verb + to infinitive ( agree, offer, promise, threaten, demand, decide ...) Ex: She said, “ I am not going...