把这些句子改成一般疑问句和否定句

1.They often play football at school.
They don't often play football often school.
Do they often play football at school?
2.Mary likes reading books in her freetime.
Mary does't like reading books in her freetime.
Does Mary like reading books in her freetime.
3.He often goes to school on foot.
He does't often go to school on foot.
Does he often go to school on foot.
4.We often have a bardbecue on the beach on sundays.
We don't often have a bardbecue on the beach on sundays.
Do you often have a bardbecue on the beach on sundays.
5.They often help each other in ehglish.
They don't often help each other in ehglish.
Do they often help each other in ehglish.
6.she often helps her mother do homework in her freetime.
she does't often help her mother do homework in her freetime.
Does she often help her mother do homework in her freetime.
7.we have five english classes every week.
we don't have five english classes every week.
Do we have five english classes every week.
8.you speak english quite well
you don't speak english quite well
Do you speak english quite well