used to do和be used to doing(区分be used to doing和used t

1、首先要理解意思：be used to doing 表示习惯于做某事或习惯于某事；used to do表示过去经常做某事

2、be used to doing 表示习惯于做某事或习惯于某事

例句:I am used to cleaning the room. 我习惯于打扫房间

You are used to playing game. 我习惯玩游戏

ps: be used to doing =get used to doing习惯于做某事

3、used to do表示过去经常做某事 （但是现在不做了）

例句：I used to go to school .

I usde to eat junk food.

used to be 表示过去是什么样的 （但现在不是）

例句：I used to be a bed student

You used to be a good student

4、be used for doing 被用于做某事

例句：The computer is used for playing game.电脑被用于玩游戏

be used to do sth 被用于做某事

例句：The computer is used to play game.电脑被用于玩游戏