Deferential: 저는 여권을 갱신해야 합니다.

Polite: 저는 여권을 갱신해야해요.

Intimate: 난 여권 갱신해야해. 

Translation: I need to renew my passport.

저 = formal “I”

는 = topic marking particle

여권 = passport

을 = object marking particle

갱신하다 = act of renewing (갱신 – renewal + 하다 – to do)

야하다 = have to or must do something

니다 = deferential verb ending