must trawl
Regular verb: trawl - trawled- trawled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must trawl
you must trawl
he must trawl
we must trawl
you must trawl
they must trawl 	I must be trawling
you must be trawling
he must be trawling
we must be trawling
you must be trawling
they must be trawling	I must have trawled
you must have trawled
he must have trawled
we must have trawled
you must have trawled
they must have trawled	I must have been trawling
you must have been trawling
he must have been trawling
we must have been trawling
you must have been trawling
they must have been trawling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't trawl
you mustn't trawl
he mustn't trawl
we mustn't trawl
you mustn't trawl
they mustn't trawl 	I mustn't be trawling
you mustn't be trawling
he mustn't be trawling
we mustn't be trawling
you mustn't be trawling
they mustn't be trawling	I mustn't have trawled
you mustn't have trawled
he mustn't have trawled
we mustn't have trawled
you mustn't have trawled
they mustn't have trawled	I mustn't have been trawling
you mustn't have been trawling
he mustn't have been trawling
we mustn't have been trawling
you mustn't have been trawling
they mustn't have been trawling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I trawl?
must you trawl?
must he trawl?
must we trawl?
must you trawl?
must they trawl? 	must I be trawling?
must you be trawling?
must he be trawling?
must we be trawling?
must you be trawling?
must they be trawling? 	must I have trawled?
must you have trawled?
must he have trawled?
must we have trawled?
must you have trawled?
must they have trawled? 	must I have been trawling?
must you have been trawling?
must he have been trawling?
must we have been trawling?
must you have been trawling?
must they have been trawling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I trawl?
mustn't you trawl?
mustn't he trawl?
mustn't we trawl?
mustn't you trawl?
mustn't they trawl? 	mustn't I be trawling?
mustn't you be trawling?
mustn't he be trawling?
mustn't we be trawling?
mustn't you be trawling?
mustn't they be trawling? 	mustn't I have trawled?
mustn't you have trawled?
mustn't he have trawled?
mustn't we have trawled?
mustn't you have trawled?
mustn't they have trawled? 	mustn't I have been trawling?
mustn't you have been trawling?
mustn't he have been trawling?
mustn't we have been trawling?
mustn't you have been trawling?
mustn't they have been trawling?