my的過去式是啥？

my沒有過去式。

I had a letter from my brother this morning .今早我收到哥哥的來信。

My own work follows this approach .我自己的研究工作就屬于這個方向。

I should be ashamed to show my face in public .我不好意思拋頭露面。

I can not bring him to my point of view .我無法說服他同意我的觀點。

As i look back , scenes of the past leap before my eyes .歷歷在目。

I really should straighten my situation out .我真得把我的情況澄清。

It's my turn. don't try to sidetrack me .這是我的事，你別轉移話題。

My supporters roared their approval .我的支持者哄堂大笑，表示贊同。

My watch has stopped -- it needs fixing .我的表停了需要修理了。