I saw(搜趣网see的过去式) a sprout.
I plan搜趣网ted(plant的过去式) two 搜趣网leaves.

l saw my clas//www.souquanme.comsmates played basketball yesterday.

I做主语 谓语动词必须用am
is搭配的主语只能是 she he it
所以如果要用www.souquanme.com到一起只能写复合句
I am a gird but he is not.

记住一般现在时中，I只和am连。所以是I am a boy. 我是一个男孩儿？如果是过去式，用was.