ADVICE AND OBLIGATION

SHOULD

IT EXPRESSES ADVICE

AFFIRMATIVE

• I
  
• YOU
  
• HE, SHE IT SHOULD LOSE WEIGHT.
  
• WE
  
• THEY
  

INTERROGATIVE

WHAT SHOULD HE DO?

SHOULD I GO TO THE DOCTOR?

NEGATIVE :

YOU SHOULDN´T EAT CANDY.

SHOULD + NOT= SHOULDN`T

MUST

IT EXPRESSES STRONG OBLICATION . IT

DEPENDS ON HTE PERSON SPEAKING.

AFFIRMATIVE:

• I
• YOU
• HE, SHE, IT MUST SEE THE DOCTOR
• WE
• THEY

INTERROGATIVE:

WHAT MUST I DO?

NEGATIVE :

SHE MUSTN`T ANSWER THE PHONE .

YOU MUSTHN´T PLAY VIDEOGAMES.

MUST+NOT =MUSTN*T