usedtodo,beusedtodoing,beusedtodo造句

used to do过去常常做某事
I used to be a young pioneer.
I used to jog in the evening.
be used to doing习惯于做某事
I'm used to drinking a cup of water after meal.
He's been used to living at the campus.
be used to do（和前面两者没有可比性,意思是“被用来做某事”）
This machine is used to clean the wall.
This word is used to express a kind of animal.