is/am are go piay eat的单数第3人称 现在分词 过去式是什么?如题.

is/am are go piay eat的单数第3人称 现在分词 过去式是什么?如题.
is/am are go piay eat的单数第3人称 现在分词 过去式是什么?
如题.

is/am are go piay eat的单数第3人称 现在分词 过去式是什么?如题.
is/am was
are were
go goes going went
play plays playing played
eat eats eating ate