I have eaten.
I have eaten meals already.这是形容已经吃过饭了。
如果说该到吃饭时候了这么说：It is time for lunch(dinner,breakfast)
Do you have eat?
Do you have dinner?
Do you have a meal?
你吃饭了吗 si buda jeke nio;You eat it;Did you eat
朋友你吃饭了吗 Did you eat friends;Friends do you eat;As you eat your friends
你早上吃饭了吗 Did you eat your morning;Do you eat the morning
I am having the meal.
treat me to a meal treat someone to something ( treat someone to) provide someone with (food, drink, or entertainment) at one's own expense : the old man had treated him to a drink or two.