-겠다 Supposition or Conjecture
August 25, 2009 by tailieutienghan
-겠다 (-gaetda) is used to express probability as a conjecture or supposition. When the speaker takes some information from his or her surroundings and wishes to make a supposition, this suffix is used. It must be used in the declarative, and solely with descriptive verbs. This grammatical structure is regarded as in the intimate politeness level.
As this structure indicates the speakers supposition, it is never used to make a supposition of oneself.
This structure can be translated as “must be,” “is probably,” “I guess.”
Verb Stem + 겠다
덥다 (deopta) – to be hot
덥 (verb stem)
덥 + 겠다 (deop + getda)
덥겠다 (deopgetda) – (You) must be hot.
1.오늘 피곤하겠다. (oneul pigonhagetda.) – (You) must be tired today.
2.그분이 힘들겠다. (geubun-i himdeulgetda). – That person must be tired.
3.와! 그 케이크 맛있겠다! (wa! geu keikeu masitgetda!) – Wow, that cake must be delicious! (I bet that cake is delicious!)
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