English verb conjugation
MUST GOBBLE

Regular verb: gobble - gobbled - gobbled

Affirmation

Simple form	V-ing form
I must gobble you must gobble he must gobble we must gobble you must gobble they must gobble	I must be gobbling you must be gobbling he must be gobbling we must be gobbling you must be gobbling they must be gobbling
Perfect	V-ing perfect
I must have gobbled you must have gobbled he must have gobbled we must have gobbled you must have gobbled they must have gobbled	I must have been gobbling you must have been gobbling he must have been gobbling we must have been gobbling you must have been gobbling they must have been gobbling

Negation

Simple form	V-ing form
I mustn't gobble you mustn't gobble he mustn't gobble we mustn't gobble you mustn't gobble they mustn't gobble	I mustn't be gobbling you mustn't be gobbling he mustn't be gobbling we mustn't be gobbling you mustn't be gobbling they mustn't be gobbling
Perfect	V-ing perfect
I mustn't have gobbled you mustn't have gobbled he mustn't have gobbled we mustn't have gobbled you mustn't have gobbled they mustn't have gobbled	I mustn't have been gobbling you mustn't have been gobbling he mustn't have been gobbling we mustn't have been gobbling you mustn't have been gobbling they mustn't have been gobbling

Interrogative form

Simple form	V-ing form
must I gobble? must you gobble? must he gobble? must we gobble? must you gobble? must they gobble?	must I be gobbling? must you be gobbling? must he be gobbling? must we be gobbling? must you be gobbling? must they be gobbling?
Perfect	V-ing perfect
must I have gobbled? must you have gobbled? must he have gobbled? must we have gobbled? must you have gobbled? must they have gobbled?	must I have been gobbling? must you have been gobbling? must he have been gobbling? must we have been gobbling? must you have been gobbling? must they have been gobbling?

Interro-negative form

Simple form	V-ing form
mustn't I gobble? mustn't you gobble? mustn't he gobble? mustn't we gobble? mustn't you gobble? mustn't they gobble?	mustn't I be gobbling? mustn't you be gobbling? mustn't he be gobbling? mustn't we be gobbling? mustn't you be gobbling? mustn't they be gobbling?
Perfect	V-ing perfect
mustn't I have gobbled? mustn't you have gobbled? mustn't he have gobbled? mustn't we have gobbled? mustn't you have gobbled? mustn't they have gobbled?	mustn't I have been gobbling? mustn't you have been gobbling? mustn't he have been gobbling? mustn't we have been gobbling? mustn't you have been gobbling? mustn't they have been gobbling?