am的过去时态
单数时was
复数时were
有不会的可以再问我英语连词成句 you，go,the,did,to,city,yesterdayam的过去时态waspulled watched helped was played milked danced were studied lived picked did cried listened had collected liked cooked tastedHow did you go to the city yesterdaydid,he,what,in,eat,evening,theWhat did he eat in the eveningwent,there,I,taxi,byI went there by taxiwalked,to,the,she,back,schoolShe walked back o the schoolit.rainy,was,yesterdayIt was rainy yesterday