must pug
Regular verb: pug - pugged- pugged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pug
you must pug
he must pug
we must pug
you must pug
they must pug 	I must be pugging
you must be pugging
he must be pugging
we must be pugging
you must be pugging
they must be pugging	I must have pugged
you must have pugged
he must have pugged
we must have pugged
you must have pugged
they must have pugged	I must have been pugging
you must have been pugging
he must have been pugging
we must have been pugging
you must have been pugging
they must have been pugging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't pug
you mustn't pug
he mustn't pug
we mustn't pug
you mustn't pug
they mustn't pug 	I mustn't be pugging
you mustn't be pugging
he mustn't be pugging
we mustn't be pugging
you mustn't be pugging
they mustn't be pugging	I mustn't have pugged
you mustn't have pugged
he mustn't have pugged
we mustn't have pugged
you mustn't have pugged
they mustn't have pugged	I mustn't have been pugging
you mustn't have been pugging
he mustn't have been pugging
we mustn't have been pugging
you mustn't have been pugging
they mustn't have been pugging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pug?
must you pug?
must he pug?
must we pug?
must you pug?
must they pug? 	must I be pugging?
must you be pugging?
must he be pugging?
must we be pugging?
must you be pugging?
must they be pugging? 	must I have pugged?
must you have pugged?
must he have pugged?
must we have pugged?
must you have pugged?
must they have pugged? 	must I have been pugging?
must you have been pugging?
must he have been pugging?
must we have been pugging?
must you have been pugging?
must they have been pugging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I pug?
mustn't you pug?
mustn't he pug?
mustn't we pug?
mustn't you pug?
mustn't they pug? 	mustn't I be pugging?
mustn't you be pugging?
mustn't he be pugging?
mustn't we be pugging?
mustn't you be pugging?
mustn't they be pugging? 	mustn't I have pugged?
mustn't you have pugged?
mustn't he have pugged?
mustn't we have pugged?
mustn't you have pugged?
mustn't they have pugged? 	mustn't I have been pugging?
mustn't you have been pugging?
mustn't he have been pugging?
mustn't we have been pugging?
mustn't you have been pugging?
mustn't they have been pugging?