常见说法有以下两种：
1. “used to do sth”的意思是“过去常常做某事;”
2. “be/get used to doing sth”的意思是“习惯于做某事;”
习惯于做某事在英语还可以有以下几种表达方式：
1. Be accustomed to doing something.
例句：He is accustomed to waking up early.
2. Be used to doing something.
例句：She is used to working long hours.
3. Get into the habit of doing something.
例句：He has gotten into the habit of exercising every morning.
4. In the habit of doing something.
例句：They are in the habit of taking a walk after dinner.
这些表达都可以用来描述某人习惯于进行某个活动或行为。