English verb conjugation
MUST UNSCRAMBLE

Regular verb: unscramble - unscrambled - unscrambled

Affirmation

Simple form	V-ing form
I must unscramble you must unscramble he must unscramble we must unscramble you must unscramble they must unscramble	I must be unscrambling you must be unscrambling he must be unscrambling we must be unscrambling you must be unscrambling they must be unscrambling
Perfect	V-ing perfect
I must have unscrambled you must have unscrambled he must have unscrambled we must have unscrambled you must have unscrambled they must have unscrambled	I must have been unscrambling you must have been unscrambling he must have been unscrambling we must have been unscrambling you must have been unscrambling they must have been unscrambling

Negation

Simple form	V-ing form
I mustn't unscramble you mustn't unscramble he mustn't unscramble we mustn't unscramble you mustn't unscramble they mustn't unscramble	I mustn't be unscrambling you mustn't be unscrambling he mustn't be unscrambling we mustn't be unscrambling you mustn't be unscrambling they mustn't be unscrambling
Perfect	V-ing perfect
I mustn't have unscrambled you mustn't have unscrambled he mustn't have unscrambled we mustn't have unscrambled you mustn't have unscrambled they mustn't have unscrambled	I mustn't have been unscrambling you mustn't have been unscrambling he mustn't have been unscrambling we mustn't have been unscrambling you mustn't have been unscrambling they mustn't have been unscrambling

Interrogative form

Simple form	V-ing form
must I unscramble? must you unscramble? must he unscramble? must we unscramble? must you unscramble? must they unscramble?	must I be unscrambling? must you be unscrambling? must he be unscrambling? must we be unscrambling? must you be unscrambling? must they be unscrambling?
Perfect	V-ing perfect
must I have unscrambled? must you have unscrambled? must he have unscrambled? must we have unscrambled? must you have unscrambled? must they have unscrambled?	must I have been unscrambling? must you have been unscrambling? must he have been unscrambling? must we have been unscrambling? must you have been unscrambling? must they have been unscrambling?

Interro-negative form

Simple form	V-ing form
mustn't I unscramble? mustn't you unscramble? mustn't he unscramble? mustn't we unscramble? mustn't you unscramble? mustn't they unscramble?	mustn't I be unscrambling? mustn't you be unscrambling? mustn't he be unscrambling? mustn't we be unscrambling? mustn't you be unscrambling? mustn't they be unscrambling?
Perfect	V-ing perfect
mustn't I have unscrambled? mustn't you have unscrambled? mustn't he have unscrambled? mustn't we have unscrambled? mustn't you have unscrambled? mustn't they have unscrambled?	mustn't I have been unscrambling? mustn't you have been unscrambling? mustn't he have been unscrambling? mustn't we have been unscrambling? mustn't you have been unscrambling? mustn't they have been unscrambling?