am -was are-were sit-sat
do-did eat=ate fly-flew get-got
go-went
过去式 你要一个词造一个么?
人（主语）+过去式（词组）=其它（过去的时间）
I was very nice tow years ago.
They were very happy yesterday.
My mother sit on that chire just now.
She did housework.
I flew kites with my friend yesterday.
He got up early yeterday .
Jone went to Buckingham Palace in 2005.
等,不知道你要什么程度!·很简单!