Let's learn about "나 이미 도착했어"

나 이미 도착했어 : I've already arrived

[other expressions]

- 나 이미 도착했다. (to younger people or friends)

- 나 이미 도착했네. (to younger people or friends)

- 나 이미 도착했어. (to younger people or friends)

- 저 이미 도착했네요. (honourific by '요')

- 저 이미 도착했어요. (honourific by '요')

- 저 이미 도착했습니다. (formal; more honourific by '스')

[explanations]

* 나 : I (non-honourific word)

* 저 : I (honourific word)

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

* 이미 : already

* 도착 : arrival

* 도착하다 : arrive

* 도착했다 : past tense of 도착하다 by '-었-'

* 도착습니다 : 도착했(the stem of 도착했다) + -스(a suffix makes a verv more honourific) + -ㅂ니다(an honourific descriptive verb ending suffix)

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

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

* a verb +  -습니다 / -ㅂ니다 : an honourific descriptive verb ending suffix by '스' / '-ㅂ'