Let's learn about "가도 돼"

가도 돼 : You can go

[other expressions]

- 가도 된다. (to younger people or friends)

- 가도 되네. (to younger people or friends)

- 가도 돼. (to younger people or friends)

- 가도 되네요. (honourific by ‘-요’)

- 가도 돼요. (honourific by ‘-요’)

- 가도 됩니다. (formal; honourific by ‘ㅂ’)

[explanations]

* 가다 : go

* -도 : (1) also; too (2) this case means that a postpositional particle used to emphasize emotion(강조하거나 감탄하는 뜻으로 쓰임)

- 아이고, 싱겁기도 해라 : Oh, it's so insipid

- 오늘 밤은 달도 밝구나 : The moon is so bright tonight

* 되다 : (1) become (2) can; be able to in the sentence

* 돼 : 되(the stem of 되다) + -어(a non-honourific descriptive verb ending suffix)

* 됩니다 : 되(the stem of 되다) + -ㅂ니다(an honourific descriptive verb ending suffix by ‘ㅂ’)

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

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

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