had better do sth 最好做某事 ; 最好做 ; 最好 ; 最好干某事

sb had better do sth 某人最好干什么

you had better do sth 你最好做某事

had better not do sth 最好别做某事 ; 最好不要做某事 ; 最好不做某事

had better no do sth 最好不做某事

had d better do sth 最好做某事