-겠-
Curiosity
What does the -get- in "I will do it" mean? Intention, future, or conjecture?
Intuition
-get- carries the speaker's stance toward something not yet realized. With a first-person subject it is intention ("I will"); with others or situations it is conjecture ("it will rain"); in set phrases it adds politeness ("I will enjoy this meal").
Visualization
gada (dictionary) → ga (stem) → gagetda. -get- enters after the stem and an ending rides on top.
Essence
Stem + -get- + ending (gagesseoyo, gagetseumnida). The shape is constant regardless of batchim. Three uses: first-person intention, conjecture, and softening/politeness. Past conjecture is -atget- (himdeureotgetda, "it must have been hard"). Spoken intention overlaps with -(eu)lgeyo and -(eu)llaeyo.
Examples
Mini-quiz
"I ___ ." (first-person intention "I will do it") Which fits?