i don't have it 和 i haven't it 有何区别?

i don't have it 和 i haven't it 有何区别? I don't have it和 I haven't it. I don't have it.和 I haven't it.哪一个对? 词组：I don't believe it 和 I don't believe 有何区别? i don't have it 和i haven't意思相同吗 I don't have..与I haven't ..的区别 haven't和don't have有什么区别 don't have 和 haven't 有什么区别. don't have和haven't有什么区别? I don't really like it 和I really don't like it意思有什么区别 I believe isn't true和I don't believe it's true有什么区别 i should don't have pushed it