must cavort
Regular verb: cavort - cavorted- cavorted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cavort
you must cavort
he must cavort
we must cavort
you must cavort
they must cavort 	I must be cavorting
you must be cavorting
he must be cavorting
we must be cavorting
you must be cavorting
they must be cavorting	I must have cavorted
you must have cavorted
he must have cavorted
we must have cavorted
you must have cavorted
they must have cavorted	I must have been cavorting
you must have been cavorting
he must have been cavorting
we must have been cavorting
you must have been cavorting
they must have been cavorting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't cavort
you mustn't cavort
he mustn't cavort
we mustn't cavort
you mustn't cavort
they mustn't cavort 	I mustn't be cavorting
you mustn't be cavorting
he mustn't be cavorting
we mustn't be cavorting
you mustn't be cavorting
they mustn't be cavorting	I mustn't have cavorted
you mustn't have cavorted
he mustn't have cavorted
we mustn't have cavorted
you mustn't have cavorted
they mustn't have cavorted	I mustn't have been cavorting
you mustn't have been cavorting
he mustn't have been cavorting
we mustn't have been cavorting
you mustn't have been cavorting
they mustn't have been cavorting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cavort?
must you cavort?
must he cavort?
must we cavort?
must you cavort?
must they cavort? 	must I be cavorting?
must you be cavorting?
must he be cavorting?
must we be cavorting?
must you be cavorting?
must they be cavorting? 	must I have cavorted?
must you have cavorted?
must he have cavorted?
must we have cavorted?
must you have cavorted?
must they have cavorted? 	must I have been cavorting?
must you have been cavorting?
must he have been cavorting?
must we have been cavorting?
must you have been cavorting?
must they have been cavorting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I cavort?
mustn't you cavort?
mustn't he cavort?
mustn't we cavort?
mustn't you cavort?
mustn't they cavort? 	mustn't I be cavorting?
mustn't you be cavorting?
mustn't he be cavorting?
mustn't we be cavorting?
mustn't you be cavorting?
mustn't they be cavorting? 	mustn't I have cavorted?
mustn't you have cavorted?
mustn't he have cavorted?
mustn't we have cavorted?
mustn't you have cavorted?
mustn't they have cavorted? 	mustn't I have been cavorting?
mustn't you have been cavorting?
mustn't he have been cavorting?
mustn't we have been cavorting?
mustn't you have been cavorting?
mustn't they have been cavorting?