过去式1 、yesterday, last week/year/monththe day before yesterday,just now 等2 、two years agoat that time before 等3 、in + 过去年份 表示过去时间内发生的 标志词1. 主语+be(was/were)2. 主语+-ed过去式的句子结构1 、一般动词在后面直接加-edplayed looked cooked pickedwatched walked worked startedlistened needed called invited2 、以e 结尾的动词只加-dliked loved danced lived moved 3 、辅音字母加y 结尾，把y 改成i ，在加-edstudy-studied carry-carriedstay-staied play-plaied say-saied下面的动词过去式变化对吗？ stayed played said4 、以重读闭音节结尾的动词，末尾只有一个辅音字母，双写这个辅音字母再加-ed 。stop-stopped shop-shop
