Cấu trúc Present Perfect
Công thức
have/has + past participle (quá khứ phân từ)
Khẳng định:
- I/We/You/They + have ('ve) + past participle
- He/She/It + has ('s) + past participle
Phủ định:
- I/We/You/They + have not (haven't) + past participle
- He/She/It + has not (hasn't) + past participle
Nghi vấn:
- Have + I/we/you/they + past participle?
- Has + he/she/it + past participle?