1.I'm not the best in the class

2.Mark doesn't do homework in the evening

3.We don't play football after school

4.You don't run fast

5.Tim and Lucas don't work at weekends

6.I don't like classical music

7.These exercises aren't difficult

8.She doesn't have science on Fridays

Các câu phủ định chỉ cần thêm chữ not vào

*Đối với tobe

is/am/are+not

*Đối với động từ thường

thêm trợ động từ do/does+not

`1.` I am not the best in the class.

`2.` Mark doesn't do homework in the evening.

`3.` We don't play football after school.

`4.` You don't run fast

`5.` Tim and Lucas don't work at weekends.

`6.` I don't like classical music.

`7.` These exercises are not difficult.

`8.` She doesn't have science on Fridays.

`------------->`

`+)` Câu phủ định với động từ tobe

`=>` S + am/ is/ are not + adj + O

`=>` is not  `->` isn't

`=>` am not `->` I'm thì chỉ cần thêm not

`=>` are not `->` aren't

`+)` Câu phủ định với động từ thường

`=>` S + do/ does not + Vo + O

`=>` do not `->` don't

`=>` does not `->` doesn't