Core Pattern Rule: -(으)ㄹ지도 몰라 (Might)
This pattern is used to express a guess, possibility, or uncertainty about a future event or a current, unknown state. It's equivalent to saying "might," "could," or "perhaps" in English. The literal meaning is "I don't know if...", which perfectly captures the nuance of uncertainty.
Formation
Verbs/Adjectives ending in a vowel or ㄹ: Attach -ㄹ지도 몰라.
오다 (to come) → 올지도 몰라
살다 (to live) → 살지도 몰라 (ㄹ is dropped)
Verbs/Adjectives ending in a consonant: Attach -을지도 몰라.
먹다 (to eat) → 먹을지도 몰라
좋다 (to be good) → 좋을지도 몰라
Nouns: Attach -(이)ㄹ지도 몰라.
Noun ending in a vowel + -ㄹ지도 몰라: 거짓말 → 거짓말일지도 몰라
Noun ending in a consonant + -일지도 몰라: 사실 → 사실일지도 몰라
Usage
Use this pattern when you are making a conjecture about something you aren't sure about. It's a very common and natural way to express possibility in everyday conversation.
비가 올지도 몰라. / 맛집일지도 몰라. / 늦을지도 몰라. / 자리가 없을지도 몰라.
Expressing Negative Possibilities
To say that something "might not" happen or "might not be" the case, you can use negative markers like 안, 못, or the verb 없다.
Using 안 (Might not...)
Place 안 before the verb or adjective to negate the action or state. This expresses the possibility of something not happening.
안 오다 → 안 올지도 몰라요. (He might not come.)
Using 못 (Might not be able to...)
Place 못 before the verb to express the possibility of being unable to do something.
못 가다 → 못 갈지도 몰라요. (I might not be able to go.)
Using 없다 (Might not exist)
To speculate about the absence of something, use the verb 없다.
자리가 없다 → 자리가 없을지도 몰라요. (There might be no seats.)
안 올지도 몰라요. / 못 갈지도 몰라요. / 자리가 없을지도 몰라요. / 안 그럴지도 몰라.