帮忙看看这几个英语句子哪里错了?

问题描述:

帮忙看看这几个英语句子哪里错了?
是过去式句子
1.They were ate grasses.
2.I tried milked a cow.

they were ate grasses.已经有实意动词了不需要were,如果用were应该是过去进行时.改为:they ate grasses(他们吃了草).they were eating grasses(他们那时正在吃草).i tried milked a cow两个词同时做谓语是不行的.mi...ate grasses没错吗?草应该是不可数名词吧?可数的