must rollick
Regular verb: rollick - rollicked- rollicked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must rollick
you must rollick
he must rollick
we must rollick
you must rollick
they must rollick 	I must be rollicking
you must be rollicking
he must be rollicking
we must be rollicking
you must be rollicking
they must be rollicking	I must have rollicked
you must have rollicked
he must have rollicked
we must have rollicked
you must have rollicked
they must have rollicked	I must have been rollicking
you must have been rollicking
he must have been rollicking
we must have been rollicking
you must have been rollicking
they must have been rollicking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't rollick
you mustn't rollick
he mustn't rollick
we mustn't rollick
you mustn't rollick
they mustn't rollick 	I mustn't be rollicking
you mustn't be rollicking
he mustn't be rollicking
we mustn't be rollicking
you mustn't be rollicking
they mustn't be rollicking	I mustn't have rollicked
you mustn't have rollicked
he mustn't have rollicked
we mustn't have rollicked
you mustn't have rollicked
they mustn't have rollicked	I mustn't have been rollicking
you mustn't have been rollicking
he mustn't have been rollicking
we mustn't have been rollicking
you mustn't have been rollicking
they mustn't have been rollicking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I rollick?
must you rollick?
must he rollick?
must we rollick?
must you rollick?
must they rollick? 	must I be rollicking?
must you be rollicking?
must he be rollicking?
must we be rollicking?
must you be rollicking?
must they be rollicking? 	must I have rollicked?
must you have rollicked?
must he have rollicked?
must we have rollicked?
must you have rollicked?
must they have rollicked? 	must I have been rollicking?
must you have been rollicking?
must he have been rollicking?
must we have been rollicking?
must you have been rollicking?
must they have been rollicking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I rollick?
mustn't you rollick?
mustn't he rollick?
mustn't we rollick?
mustn't you rollick?
mustn't they rollick? 	mustn't I be rollicking?
mustn't you be rollicking?
mustn't he be rollicking?
mustn't we be rollicking?
mustn't you be rollicking?
mustn't they be rollicking? 	mustn't I have rollicked?
mustn't you have rollicked?
mustn't he have rollicked?
mustn't we have rollicked?
mustn't you have rollicked?
mustn't they have rollicked? 	mustn't I have been rollicking?
mustn't you have been rollicking?
mustn't he have been rollicking?
mustn't we have been rollicking?
mustn't you have been rollicking?
mustn't they have been rollicking?