how do we say "I need ~~" ??
when we say we need to do something ( like I need to go ) we generally add "아/어야 하다". is it the same when we say I need something like we're complaining
ex: I need more sleep or I need to start revising for the exams
Thank you in advance

Question

how do we say "I need ~~" ??
when we say we need to do something ( like I need to go ) we generally add "아/어야 하다".  is it the same when we say I  need something like we're complaining 
ex: I need more sleep or I need to start revising for the exams  
Thank you in advance

Answer

I need more sleep 
더 많은 잠이 필요해요.

I need to start revising for the exams 
시험공부를 시작해야 해요.

1. need + a noun : …을 필요로 하다, …이 필요하다.

A sick person needs care.
환자에게는 간호가 필요하다.

I need someone to look after my son.
누군가 내 아들을 돌봐줄 사람이 필요하다.

2. need + to do something : …할 필요가 있다,  해야 하다,

I need to get some sleep.
난 잠을 좀 자야 한다.

I need to mow the lawn.
나는 잔디를 깎아야 한다.

Answer

아/어야 되다 is also used to express ''need to do somthing''
자야 돼요
시험 준비 공부해야 돼요