must twirl
Regular verb: twirl - twirled- twirled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must twirl
you must twirl
he must twirl
we must twirl
you must twirl
they must twirl 	I must be twirling
you must be twirling
he must be twirling
we must be twirling
you must be twirling
they must be twirling	I must have twirled
you must have twirled
he must have twirled
we must have twirled
you must have twirled
they must have twirled	I must have been twirling
you must have been twirling
he must have been twirling
we must have been twirling
you must have been twirling
they must have been twirling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't twirl
you mustn't twirl
he mustn't twirl
we mustn't twirl
you mustn't twirl
they mustn't twirl 	I mustn't be twirling
you mustn't be twirling
he mustn't be twirling
we mustn't be twirling
you mustn't be twirling
they mustn't be twirling	I mustn't have twirled
you mustn't have twirled
he mustn't have twirled
we mustn't have twirled
you mustn't have twirled
they mustn't have twirled	I mustn't have been twirling
you mustn't have been twirling
he mustn't have been twirling
we mustn't have been twirling
you mustn't have been twirling
they mustn't have been twirling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I twirl?
must you twirl?
must he twirl?
must we twirl?
must you twirl?
must they twirl? 	must I be twirling?
must you be twirling?
must he be twirling?
must we be twirling?
must you be twirling?
must they be twirling? 	must I have twirled?
must you have twirled?
must he have twirled?
must we have twirled?
must you have twirled?
must they have twirled? 	must I have been twirling?
must you have been twirling?
must he have been twirling?
must we have been twirling?
must you have been twirling?
must they have been twirling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I twirl?
mustn't you twirl?
mustn't he twirl?
mustn't we twirl?
mustn't you twirl?
mustn't they twirl? 	mustn't I be twirling?
mustn't you be twirling?
mustn't he be twirling?
mustn't we be twirling?
mustn't you be twirling?
mustn't they be twirling? 	mustn't I have twirled?
mustn't you have twirled?
mustn't he have twirled?
mustn't we have twirled?
mustn't you have twirled?
mustn't they have twirled? 	mustn't I have been twirling?
mustn't you have been twirling?
mustn't he have been twirling?
mustn't we have been twirling?
mustn't you have been twirling?
mustn't they have been twirling?