THÌ HIỆN TẠI HỒN THÀNH: (Present Perfect) Từ nhận biết: Since, For, Just, Yet, This week, almost every day, Already, secently, recently, lately, In the past week, in recent years, Up to now, up to the present, until now For a long time, for ages, Several times, Many times, Up to now, until now, up to present, So far, how long, Ever, Never, - Khẳng định (+) : S + has/have + V3/ed Has: He/She/ It/ N số Have: I/ We/ You/ They/ N số nhiều - Phủ định (-) : S + has/have + not + V3/ed Has not: hasn’t Have not: haven’t - Câu hỏi (?) : Has/have + S + V3/ed ? : Wh + has/have + S + V3/ed ? Yes, S + has/have + V3/ed No, S + has/have + not + V3/ed