一个英语语法问题be used to do sth get used to doingused to do sthuse

e used to do sth 被用来做某事
get used to doing 习惯做某事
used to do sth 过去常常做某事
used to doing sth 习惯做某事
英语这玩意儿有时就是得多练,得实践才能记住,