I was born in 1955.这里born是什么词性?

I was born in 1955.这里born是什么词性? born的用法功夫熊猫里面有一句：I was born ready.我想问一下这里born是什么词性?字典里MS没有副词 i was born in when was he born born在这里是什么词性? 动词or形容词? where i was born 为何用where,born后面不是要+in,在这里born啥意思? I was born in _____and I was born in 1995 I was born in 1993. When were you born?I was born in March,1990. which which means "born in Hong Kong"最好还有MEAN在这里是什么词性 I was born in the year of ------------- I was born in Shanghai?中文