to have a habit, be in the habit of (doing sth) ☊ 
có cái tật ☊ to have, be in the habit (of doing something) ☊ có thói quen ☊ to have the habit of telling tales ☊ có tật hay bép xép ☊ (1) interesting, well; or (2) have the habit of doing; often, frequently ☊
hay ☊ be in the habit of lying, be a liar ☊ khi trá ☊ to not be in the habit of (doing sth) ☊ không có thói quen ☊ have the habit of ☊ quen thói ☊