Let's learn about "믿어"

믿어 : Believe you

[other expressions]

- (난) (너를) 믿는다. (to younger people or friends)

- (난) (너를) 믿네. (to younger people or friends)

- (난) (너를) 믿어. (to younger people or friends)

- (전) (오빠를) 믿네요. (honourific by '-요')

- (전) (오빠를) 믿어요. (honourific by '-요')

- (전) (오빠를) 믿습니다. (formal; honourific by '-ㅂ')

[explanations]

* 나 : I (non-honourific word); 나 can be replaced by 난

* 저 : I (honourific word); 저 can be replaced by 전

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

* 난 : a short form of 나는

* 전 : a short form of 저는

* 너 : you (a non-honourific word)

* 오빠 : older brother; a man is older than me

* -를 : a particle 너 / 오빠 objective after a word ends in a vowel

* 널 : a short form of 너를

* 오빨 : a short form of 오빠를

* 믿다 : (1) [=사실이라고 생각하다] believe; credit (2) [=신뢰하다] trust, believe in (3) [=신(God)•종교(religion)를 믿다] believe in, have faith in

- 사실로 믿다 : take sth for truth[as a fact]

- 믿을 만한 소식통에 의하면 : according to reliable sources

- 신을 믿다 : believe in God

* 믿습니다 : 믿(the stem of 믿다) + -스(a suffix makes a verb more honourific) + -ㅂ니다(an honourific descriptive verb ending suffix by '-ㅂ')

* 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