must trawl
Verbo regular: trawl - trawled- trawled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not trawl
you must not trawl
he must not trawl
we must not trawl
you must not trawl
they must not trawl 	I must not be trawling
you must not be trawling
he must not be trawling
we must not be trawling
you must not be trawling
they must not be trawling	I must not have trawled
you must not have trawled
he must not have trawled
we must not have trawled
you must not have trawled
they must not have trawled	I must not have been trawling
you must not have been trawling
he must not have been trawling
we must not have been trawling
you must not have been trawling
they must not have been trawling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not trawl?
must you not trawl?
must he not trawl?
must we not trawl?
must you not trawl?
must they not trawl? 	must I not be trawling?
must you not be trawling?
must he not be trawling?
must we not be trawling?
must you not be trawling?
must they not be trawling? 	must I not have trawled?
must you not have trawled?
must he not have trawled?
must we not have trawled?
must you not have trawled?
must they not have trawled? 	must I not have been trawling?
must you not have been trawling?
must he not have been trawling?
must we not have been trawling?
must you not have been trawling?
must they not have been trawling?