must cavort
Regular verb: cavort - cavorted- cavorted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cavort
you must cavort
she must cavort
we must cavort
you must cavort
they must cavort 	I must be cavorting
you must be cavorting
she must be cavorting
we must be cavorting
you must be cavorting
they must be cavorting	I must have cavorted
you must have cavorted
she 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
she 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
she 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
she 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
she 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
she 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 she cavort?
must we cavort?
must you cavort?
must they cavort? 	must I be cavorting?
must you be cavorting?
must she be cavorting?
must we be cavorting?
must you be cavorting?
must they be cavorting? 	must I have cavorted?
must you have cavorted?
must she 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 she 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 she 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 she 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 she 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 she have been cavorting?
mustn't we have been cavorting?
mustn't you have been cavorting?
mustn't they have been cavorting?