英语的20个句子。

原句 否定句 一般疑问句
一般现在时
I‘m here. I'm not here. Are you here?
I like playing football. I don't like playing football. Do you like playing football?
He often wears a coat. He doesn't often wear a coat. Does he often wears a coat?
She is 12 years old. She is not 12 years old. Is she 12 years old?
It‘s possible. It's not possible. Is it possible?
不好意思，没时间了，不过大多数否定句都是在助动词上否定，没助动词的添在行为动词前；疑问句则把助动词提到句首，没有助动词的也是添。
希望采纳，谢谢。

英语好句子

Bold tries make impossible dreams became true.
(本来无望的事,大胆尝试,往往能成功.---莎士比亚)
An idle youth,a needy ago.
(少壮不努力,老大徒伤悲.)
Book is the ladder of human progress.
(书籍是人类进步的阶梯.---高尔基)
Easy said than done.
(说来容易做来难.)