must slug
Regular verb: slug - slugged- slugged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slug
you must slug
he must slug
we must slug
you must slug
they must slug 	I must be slugging
you must be slugging
he must be slugging
we must be slugging
you must be slugging
they must be slugging	I must have slugged
you must have slugged
he must have slugged
we must have slugged
you must have slugged
they must have slugged	I must have been slugging
you must have been slugging
he must have been slugging
we must have been slugging
you must have been slugging
they must have been slugging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't slug
you mustn't slug
he mustn't slug
we mustn't slug
you mustn't slug
they mustn't slug 	I mustn't be slugging
you mustn't be slugging
he mustn't be slugging
we mustn't be slugging
you mustn't be slugging
they mustn't be slugging	I mustn't have slugged
you mustn't have slugged
he mustn't have slugged
we mustn't have slugged
you mustn't have slugged
they mustn't have slugged	I mustn't have been slugging
you mustn't have been slugging
he mustn't have been slugging
we mustn't have been slugging
you mustn't have been slugging
they mustn't have been slugging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slug?
must you slug?
must he slug?
must we slug?
must you slug?
must they slug? 	must I be slugging?
must you be slugging?
must he be slugging?
must we be slugging?
must you be slugging?
must they be slugging? 	must I have slugged?
must you have slugged?
must he have slugged?
must we have slugged?
must you have slugged?
must they have slugged? 	must I have been slugging?
must you have been slugging?
must he have been slugging?
must we have been slugging?
must you have been slugging?
must they have been slugging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I slug?
mustn't you slug?
mustn't he slug?
mustn't we slug?
mustn't you slug?
mustn't they slug? 	mustn't I be slugging?
mustn't you be slugging?
mustn't he be slugging?
mustn't we be slugging?
mustn't you be slugging?
mustn't they be slugging? 	mustn't I have slugged?
mustn't you have slugged?
mustn't he have slugged?
mustn't we have slugged?
mustn't you have slugged?
mustn't they have slugged? 	mustn't I have been slugging?
mustn't you have been slugging?
mustn't he have been slugging?
mustn't we have been slugging?
mustn't you have been slugging?
mustn't they have been slugging?