i am wondering 与 i wondered 表示语气委婉时的区别

I was wondering与i am wondering什么区别? I am wondering how 和I am wondering what的区别 i wonder 和i am wondering 什么区别 I am wondering what Disneyland looks like? I wondered ( ) SO I AM 与 SO AM I 的区别? I was wondering if you could be这句话的语气? 有没有高手i wonder 和i was wondering和 i am wondering i am who i am与who am i的区别 I am afraid I must be going与I am afraid I must go的区别 yes I'm与yes I am 的区别 so do I与so am I 的区别