Core Grammar: -(으)려야 and -고 보니
These two grammar patterns help express the gap between intention/expectation and reality, often conveying a sense of frustration or surprise.
Meaning & Usage
-(으)려야: This pattern expresses that you cannot do something, no matter how much you intend or try. It emphasizes the impossibility or your psychological block against an action. It's almost always followed by a negative phrase like -(으)ㄹ 수 없다 (can't) or 안 되다 (doesn't work).
-고 보니: This pattern is used when you realize or discover something new only after completing an action. The realization is often unexpected or contrary to what you thought before doing the action. It connects an action to a subsequent discovery.
Conjugation Rules
-(으)려야:
Verb stem ends in a vowel or ㄹ: Add -려야. (e.g., 가다 → 가려야, 잊다 → 잊으려야 but 만들다 → 만들려야)
Verb stem ends in a consonant (except ㄹ): Add -으려야. (e.g., 먹다 → 먹으려야, 끊다 → 끊으려야)
-고 보니:
Simply attach -고 보니 to any verb stem, regardless of whether it ends in a vowel or a consonant. (e.g., 하다 → 하고 보니, 입다 → 입고 보니)
-(으)려야: 가려야 / 먹으려야 / -고 보니: 하고 보니 / 먹고 보니
Native Nuance & Mistakes
Understanding the subtle feelings these patterns convey is key to using them naturally.
The Frustration of -(으)려야
Context: -(으)려야 is not just about physical impossibility; it's often about a strong internal or situational barrier. It implies a struggle. You wouldn't use it for something that is fundamentally impossible for anyone, like flying. It's for actions you should be able to do but can't.
Example (Do): 너무 슬퍼서 울음을 참으려야 참을 수가 없었어. (I was so sad I couldn't hold back my tears even if I tried.)
Example (Don't): 하늘을 날려야 날 수가 없어. (This is unnatural because flying is not something a person can normally do.)
The "Aha!" Moment of -고 보니
Context: -고 보니 isn't just for listing events in order. It highlights the moment of realization—the "Aha!" or "Oh no!" that follows an action. The information discovered is new to the speaker at that moment.