Let’s learn about "안 간다”

 안 가 : I’m not going

[other expressions]

- 나 안 간다. (to younger people or friends)

- 나 안 가네. (to younger people or friends)

- 나 안 가. (to younger people or friends)

- 저 안 가네요. (honourific by ‘요’)

- 저 안 가요. (honourific by ‘요’)

- 저 안 갑니다. (formal; honourific by ‘ㅂ’)

[explanations]

* 나 : I (non-honourific word)

* 저 : I (honourific word)

* -는 : a particle makes 나 / 저 subjective after a word ends in a vowel

* 안 : this is equal to not in English

* 가다 : go

* 간다 : present tense of 가다 by ‘-ㄴ’

* 가 : 가(the stem of 가다; 가 and 아 contracted into 가) + -아

* 갑니다 : 가(the stem of 가다) + -ㅂ니다(an honourific verb ending suffix by ‘ㅂ’)

* a verb + -다 / -네 / -아 : an non-honourific descriptive verb ending suffix

* a verb + -네 / -아 + -요 : an honourific verb ending suffix

* a verb + -ㅂ니다 : an honourific descriptive verb ending suffix by ‘-ㅂ’