`\text{Answer :}`

1. They do the dishes every day.

Phủ định : They don't do the dishes every day.

Nghi vấn : Do they do the dishes every day ?

2. She cleans the kitchen every afternoon.

Phủ định : She doesn't clean the kitchen every afternoon.

Nghi vấn : Does she clean the kitchen every afternoon.

`-` Trước động từ thường ta sử dụng trợ động từ do/does.

`\text{( - ) S + doesn't/don't + V}`

`\text{( ? ) Do/Does + S + V ?}`

 1/ 
(-) They don't do the dishes every day .
(?)  Do they do the dishes every day ?
2/ 
(-) She doesn't clean the kitchen every afternoon.
(?) Does she clean the kitchen every afternoon ?

 Cấu trúc thì hiện tại đơn 

(+) S + V/ V(s/es) + Object…

(-) S do/ does + not + V +…

(?) Do/ Does + S + V?

Dấu hiệu nhận biết :
+ everyday,every week/month ....
+ alway,usually ,often ....

o  I,you,we,they,Ns : do
o  He,she,it,N : does

@trieuan3310