must flense
Regular verb: flense - flensed- flensed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must flense
you must flense
she must flense
we must flense
you must flense
they must flense 	I must be flensing
you must be flensing
she must be flensing
we must be flensing
you must be flensing
they must be flensing	I must have flensed
you must have flensed
she must have flensed
we must have flensed
you must have flensed
they must have flensed	I must have been flensing
you must have been flensing
she must have been flensing
we must have been flensing
you must have been flensing
they must have been flensing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't flense
you mustn't flense
she mustn't flense
we mustn't flense
you mustn't flense
they mustn't flense 	I mustn't be flensing
you mustn't be flensing
she mustn't be flensing
we mustn't be flensing
you mustn't be flensing
they mustn't be flensing	I mustn't have flensed
you mustn't have flensed
she mustn't have flensed
we mustn't have flensed
you mustn't have flensed
they mustn't have flensed	I mustn't have been flensing
you mustn't have been flensing
she mustn't have been flensing
we mustn't have been flensing
you mustn't have been flensing
they mustn't have been flensing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I flense?
must you flense?
must she flense?
must we flense?
must you flense?
must they flense? 	must I be flensing?
must you be flensing?
must she be flensing?
must we be flensing?
must you be flensing?
must they be flensing? 	must I have flensed?
must you have flensed?
must she have flensed?
must we have flensed?
must you have flensed?
must they have flensed? 	must I have been flensing?
must you have been flensing?
must she have been flensing?
must we have been flensing?
must you have been flensing?
must they have been flensing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I flense?
mustn't you flense?
mustn't she flense?
mustn't we flense?
mustn't you flense?
mustn't they flense? 	mustn't I be flensing?
mustn't you be flensing?
mustn't she be flensing?
mustn't we be flensing?
mustn't you be flensing?
mustn't they be flensing? 	mustn't I have flensed?
mustn't you have flensed?
mustn't she have flensed?
mustn't we have flensed?
mustn't you have flensed?
mustn't they have flensed? 	mustn't I have been flensing?
mustn't you have been flensing?
mustn't she have been flensing?
mustn't we have been flensing?
mustn't you have been flensing?
mustn't they have been flensing?