was playing是过去式还是将来,如果是过为何是加ing而不是加ed?
问题描述：
was playing是过去式还是将来,如果是过为何是加ing而不是加ed?
答
was doing 是过去进行时
答
was playing是过去进行时
答
确切说应该是过去进行时,过去式 是played,将来时是is playing,或者will play,is going to play等等