not do与not to do有什么区别吗?它们的用法分别是什么?

not do与not to do有什么区别吗?它们的用法分别是什么? Need not to do 与 need not do 的区别need not to do 与 need not do 有什么区别啊?例如:people who .need not buypeople who .need not to buy两者哪一个正确? be unable to do与be not able to do有什么区别 CAN not 与 DO not 有什么区别 why do not do sth与why not do sth有什么区别? try not to do sth和try to not do sth有什么区别? why not do和why not to do有什么区别?要尽快! I do not want to,do not do not. do not 等于什么to _ to do not want to Do not bow to impossible not to do do not do not do not to talk后加什么 do not与don't有什么区别 In order not to do与not to do的区别.请说的详细一点.最好有例句. 有had better not to do sth. 有没有regret not to do