Speech-levels

Question 1

Speech levels highest to lowest

Answer 1

Differential
Polite
Blunt
Familiar
Intimate
Plain

Question 2

Speech level endings

Answer 2

Declarative (statement)
Interrogative (question)
Imperative (demand/request)
Propositive (suggestion)

Question 3

Deferential

Answer 3

Declarative - 습니다 / ㅂ니다
Interrogative - 습니까 / ㅂ니까
Imperative - (으) 십시오
Proprositive - (으) 십시다

Question 4

Polite

Answer 4

Declarative - 어요 / 아요
Interrogative - 어요 / 아요
Imperative - 어요 / 아요
Proprositive - 어요 / 아요

Question 5

Blunt

Answer 5

Declarative - (으) 오
Interrogative - (으) 오
Imperative -
Proprositive -

Question 6

Familiar

Answer 6

Declarative - 네
Interrogative - 나 / 는가
Imperative - 게
Proprositive - 세

Question 7

Intimate

Answer 7

Declarative - 어 / 아
Interrogative - 어 / 아
Imperative - 어 / 아
Proprositive - 어 / 아

Question 8

Plain

Answer 8

Declarative - (느) ㄴ다
Interrogative - (으) 니 / 냐
Imperative - 어라 / 아라
Proprositive - 자

Question 9

Examples in sentence form

Answer 9

SOMEONE EATS?
To eat : 먹다
Deferential: 먹습니다?
Polite: 먹어요?
Intimate: 먹어?
Plain:  먹냐?