英语中有多少语法?比如现在进行时,过去时那些,然后这些时态怎么运用在...答:2.时间状语:ago, yesterday, the day before yesterday, last week, last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc. 3.基本结构:主语+动词或be的过去时+名词 4.否定形式:主语+was/were +not+其他;在行为动词前加didn't,...