Question

haven't和don't have 有什么不同?

haven't done
don't have to do
don't have sth.
有什么不同?

Answer 1

看到你问这种问题，应该还是个初学者。
没事，一切从头开始，慢慢来。会把英文学好的。
具体的语法解释就不说了。直接跟你讲它们各是什么意思以及用法吧。

haven't done :还没有做。。。
don't have to do ：没必要做。。。
don't have sth. ：没。。。（东西）

例子：
I haven't got your point yet.
我还没拿到你给的分数。
You don't have to pay me the point for what i have done.
你没必要为我所做的给分。
I don't have any points now.
我现在一分都没有。

Answer 2

haven't done 是一种时态 现在完成时的否定式 表示还没有干什么
don't have to do意思是不必干什么
don't have sth.意思是没有什么东西

Answer 3

haven't done 还没有做 完成时否定
don't have to do 没必要去做
don't have sth (to do) 没有事情(做) 现在时否定

Answer 4

haven't 是现在完成时，haven't done something表示的事没有完成某事，have在这里是助动词，没有实际意义。
don't have是指没有某事/某物，have在这里作拥有的意思。
二者完全不同。

I haven't finished my homework.
我还没有写完作业。

i don't have enough money.
我没带够钱。

Answer 5

haven't是助动词,表示的是现在完成时

don't have to do 表达的不需要某事,是固定搭配,意思跟don't need接近

don't have sth. 意思是没有什么,此处have是实义动词