why not do sth.=why don't you do sth.还等于什么
问题描述：
why not do sth.=why don't you do sth.还等于什么
答
Shall I/we do sth.?
What/How about doing sth.?
Let's do sth.
You'd better do sth.
都是表示提建议的句型。
答
how about doing sth
祝你学习进步，不明白的再问哟，请及时采纳哦，多谢！(*^__^*)
答
我们老师告诉我们8个 1.Would you like not do sth?
2.would/could/will you please not
do sth?3.please not do sth 4.would you mind not doing sth?