Let’s learn about "의사 결정(decision making) #1"

1. 결정했어요 : I’ve made my decision

[other expressions]

- 결정했다. (to younger people or friends)

- 결정했네. (to younger people or friends)

- 결정했어. (to younger people or friends)

- 결정했네요.

- 결정했어요.

- 결정했습니다. (formal)

[explanations]

* 결정하다 : make a decision

* 결정했다 : past tense of 결정하다

* a verb + -다 / -네 / -어 : a descriptive verb ending suffix

* a verb + -요 / -습니다 : a descriptive verb ending suffix has an honourific by ‘-요’ / ‘-ㅂ’

2. 결심했어요 : I made up my mind (this means "I'm determined not to give up what I've planned and to go through with it")

[other expressions]

- 결심했다. (to younger people or friends)

- 결심했네. (to younger people or friends)

- 결심했어. (to younger people or friends)

- 결심했네요.

- 결심했어요.

- 결심했습니다. (formal)

[explanations]

* 결심하다 : make up one’s mind

* 결심했다 : past tense of 결심하다

* a verb + -다 / -네 / -어 : a descriptive verb ending suffix

* a verb + -요 / -습니다 : a descriptive verb ending suffix has an honourific by ‘-요’ / ‘-ㅂ’

3. 생각을 바꿨어요 : I’ve changed my mind

[other expressions]

- 생각을 바꿨다. (to younger people or friends)

- 생각을 바꿨어. (to younger people or friends)

- 생각을 바꿨네. (to younger people or friends)

- 생각을 바꿨네요.

- 생각을 바꿨어요.

- 생각을 바꿨습니다. (formal)

[explanations]

* 생각 : thought; decision in the sentence

* 을 : a suffix makes 생각 objective after a word ends a consonant

* 바꾸다 : change

* 바꿨다 : 바꾸다 + -었(a suffix makes a verb past tense)

* a verb + -다 / -네 / -어 : a descriptive verb ending suffix

* a verb + -요 / -습니다 : a descriptive verb ending suffix has an honourific by ‘-요’ / ‘-ㅂ’

4. 전 꼭 할 거예요 : I’m going to make it / I’ll do it

[other expressions]

- 난 꼭 할 거야. (to younger people or friends)

- 난 꼭 할 것이야. (to younger people or friends)

- 전 꼭 할 거예요.

- 전 꼭 할 겁니다. (formal)

- 전 꼭 할 것이에요.

- 전 꼭 할 것입니다. (formal)

[explanations]

* 난 : a short form of 나는

* 나 : I (non-honourific word)

* 전 : a short form of 저는

* 저 : I (honourific word)

* 는 : a suffix makes 나 / 저 subjective after a word ends a vowel

* 꼭 : for sure

* 하다 : do

* 할 : 하다 + -ㄹ(a letter makes a verb future tense)

* 거 : a short form of 것(a thing; a stuff; my decision in the sentence)

* 이다 : be; exist; have

* 할 거다 / 할 것이다 : I’m going to do something; I’ll do something

* 겁니다 : 거 + -ㅂ니다; a short form of 것입니다

* a noun + -야 / -이야 : a descriptive form of 이다

* a noun + -예요 / -이에요 / -ㅂ니다 / -입니다 : an honourific form of 이다 by ‘-요’ / ‘-ㅂ’

* -예요 : this is used after a word ends a vowel

* -이에요 : this is used after a word ends a consonant