I was here yesterday 是什么时态

I was here yesterday 是什么时态 I wish I were here yesterday中为什么不用was I wish I were here yesterday中为什么不用was Were you here yesterday?Yes,i（ ） am、was、were? I was here the day before yesterday.(改否定句) I was here the day before yesterday 改为否定句 I was ill yesterday. I was unhappy yesterday. I didn't come here yesterday because I was ill.（对because i was ill 提问） I remember you () here yesterday.A.was B.weren't C.are D.isn't I remember they----here yesterday.A.was.B.weren't.C.isn't.D.are yesterday I was,today I I was not born yesterday I was unlucky yesterday是什么意思 英语翻译NobodyNobody's here.where is everybody?I'm going home.Hi,jia Ming Hey!Where were you yesterday morning?I was at the pool.It was fun. He做句子主语I like ice cream.I want a newspaper.I was at school yesterday.I don't live here. 我昨天不在是 I wasn't here yesterday 还是 I weren't here yesterday? 英语过去式与时间状语我能说I sat here for 3 hours yesterday.或者I was sitting here for 3 hours yesterday.有什么不同啊,过去式能加FOR的时间状语吗?