HTĐ phủ định 

( - ) ; S + don't / doesn't + V nguyên mẫu

I / you /we / they + don't + V nguyên mẫu

He / she / it + doesn't + V nguyên mẫu

1 : We don't study English on sundays

2 : My parents don't get up late

3 : My đa doesn't relax in the morning

4 : I don't have lunch at 2:00

5 : Our teacher doesn't have a break at 10 :00

1. We don't study English on Sunday

=> WE là số nhiều nên dùng don't, V-sau don't và doesn't giữ nguyên.

2. My parents don't get up late

=> Parents là số nhiều nên dùng don't, V-sau don't và doesn't giữ nguyên.

3. My dad doesn't relax in the morning

=> Dad là số ít nên dùng doesn't, V-sau don't và doesn't giữ nguyên.

4. I don't have lunch

=> I nên dùng don't, V-sau don't và doesn't giữ nguyên.

5. Our teacher doesn't have a break.

=> Teacher là số ít nên dùng don't, V-sau don't và doesn't giữ nguyên.