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-아도/어도 되다 vs -(으)면 되다

Beginner · TOPIK I

-아도/어도 되다 gives permission ('it's OK to…'); -(으)면 되다 states a sufficient condition ('you just need to…, and that's it').

-아도/어도 되다An expression used to indicate that a certain act is allowed or accepted.-(으)면 되다An expression used to indicate that, as long as one does or reaches a certain act or state, there is no problem or it is enough.

Rules of thumb

  • Asking for or giving permission: -아도/어도 되다 (여기 앉아도 돼요? 'May I sit here?').
  • Giving instructions, saying that one thing is enough: -(으)면 되다 (이 버스를 타면 돼요 'You just take this bus').
  • Negative counterparts: -(으)면 안 되다 'must not'; 안 -아도 되다 / -지 않아도 되다 'don't have to'.
  • Asking how to do something: 어떻게 하면 돼요? 'What should I do?' — not -아도 되다.

Example sentences

  • -아도/어도 되다

    Is it OK to take photos here?

  • -(으)면 되다

    To get to City Hall, you just take this bus.

  • -(으)면 되다

    You just need to write your name on this form.

  • -아도/어도 되다

    If you're tired, you can go home first.

  • -아도/어도 되다

    You don't have to come early tomorrow.

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