didn't和haven't什么有区别

didn't和haven't什么有区别 didn't know,had't know和haven 't know用法有什么区别 haven't和 didn't的区别 请问did,didn't和have,haven't有什么区别吗?它们都是代表过去的,比如I didn't finish haven\'t和doesn\'t have有什么区别 haven't和don't have有什么区别 don't have 和 haven't 有什么区别. haven't 和 doesn't have有什么区别? don't have和haven't有什么区别? didn't haven't I haven't got much和I haven't got many 有什么区别? didn't和doesn't有什么区别