-(으)ㄹ 것 같다
Curiosity
How do you express an uncertain but likely guess in Korean, as in "it looks like it will rain"?
Intuition
-(eu)l geot gatda takes the future/presumptive adnominal -(eu)l and adds "geot (thing) gatda (seems like)" to softly guess "it looks like that will happen." It is less assertive and more hedged than -get-.
Visualization
gada (dictionary) → ga (stem, vowel) → gal geot gatda. With no final consonant it takes -l geot gatda.
Essence
With a vowel use -l geot gatda (gal geot gatda); with a consonant -eul geot gatda (meogeul geot gatda). The adnominal shifts by tense: present -neun geot gatda (ganeun geot gatda), past -(eu)n geot gatda (gan geot gatda), future/conjecture -(eu)l geot gatda. Adjectives use -(eu)n geot gatda even for the present (yeppeun geot gatda).
Examples
Mini-quiz
"It ___ ." (conjecture "looks like it will rain") Which fits? (oda, vowel stem)