Let's learn about "지쳤다"

지쳤어 : I'm exhausted

[other expressions]

- 지쳤다. (to younger people or friends)

- 지쳤네. (to younger people or friends)

- 지쳤어. (to younger people or friends)

- 지쳤네요. (honourific by '-요')

- 지쳤어요. (honourific by '-요')

- 지쳤습니다. (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

* 난 : a short form of 나는; this omitted

* 전 : a short form of 저는; this omitted

* 지치다 : got angry; be fuming <-- 화(anger) + 나다(come out)

* 지쳤다 : present tense or present perfect of 보다

* 지쳤습니다 : 지쳤(the stem of 지쳤다) + -스(a suffix makes a verb more honourific) + -ㅂ니다(an honourific descriptive verb ending suffix)

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

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

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