语法

一句话只能有一个动词，跟在第一个动词后边的动词要用动词不定式或动名称◆当动作已经做过了→不定时to do
◆当动作还没有做→动名词doing
eat 咀嚼（边吃边咀嚼） take 吃药 have 通用（三餐）
例：take some medicine 吃药
have lunch 吃午餐
We have (eat)rice and meat every day.
I have milk every morning.
take this medicine every six hours.