Must do
This expression is used when the speaker is making a promise to oneself, making a decision to do something, or simply expressing such an intention. It is also used when thinking or speaking to oneself, but in such cases the informal form -아/어야지 is used. This expression is also used in the shortened form '-아/어야죠'.
This expression is also used to indicate that the hearer or some other person should perform some action or behavior. Moreover, when the past tense form -았/었어야지 is used, the expression conveys a sense of scolding or rebuking the other person for not doing something that should have already been done.
Express speaker’s strong intention for oneself or a strong suggestion to someone else.
12 more sentences in the app — free account.