every day,his mother washed his hands and face.为什么wash 要加ed?不是有every

every day,his mother washed his hands and face.
为什么wash 要加ed?
不是有every

有了every day不一定就要用现在时态,如果动作发生在过去,表示在过去经常发生的某个动作,就可以用过去时态.