must invaginate
Regular verb: invaginate - invaginated- invaginated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must invaginate
you must invaginate
he must invaginate
we must invaginate
you must invaginate
they must invaginate 	I must be invaginating
you must be invaginating
he must be invaginating
we must be invaginating
you must be invaginating
they must be invaginating	I must have invaginated
you must have invaginated
he must have invaginated
we must have invaginated
you must have invaginated
they must have invaginated	I must have been invaginating
you must have been invaginating
he must have been invaginating
we must have been invaginating
you must have been invaginating
they must have been invaginating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't invaginate
you mustn't invaginate
he mustn't invaginate
we mustn't invaginate
you mustn't invaginate
they mustn't invaginate 	I mustn't be invaginating
you mustn't be invaginating
he mustn't be invaginating
we mustn't be invaginating
you mustn't be invaginating
they mustn't be invaginating	I mustn't have invaginated
you mustn't have invaginated
he mustn't have invaginated
we mustn't have invaginated
you mustn't have invaginated
they mustn't have invaginated	I mustn't have been invaginating
you mustn't have been invaginating
he mustn't have been invaginating
we mustn't have been invaginating
you mustn't have been invaginating
they mustn't have been invaginating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I invaginate?
must you invaginate?
must he invaginate?
must we invaginate?
must you invaginate?
must they invaginate? 	must I be invaginating?
must you be invaginating?
must he be invaginating?
must we be invaginating?
must you be invaginating?
must they be invaginating? 	must I have invaginated?
must you have invaginated?
must he have invaginated?
must we have invaginated?
must you have invaginated?
must they have invaginated? 	must I have been invaginating?
must you have been invaginating?
must he have been invaginating?
must we have been invaginating?
must you have been invaginating?
must they have been invaginating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I invaginate?
mustn't you invaginate?
mustn't he invaginate?
mustn't we invaginate?
mustn't you invaginate?
mustn't they invaginate? 	mustn't I be invaginating?
mustn't you be invaginating?
mustn't he be invaginating?
mustn't we be invaginating?
mustn't you be invaginating?
mustn't they be invaginating? 	mustn't I have invaginated?
mustn't you have invaginated?
mustn't he have invaginated?
mustn't we have invaginated?
mustn't you have invaginated?
mustn't they have invaginated? 	mustn't I have been invaginating?
mustn't you have been invaginating?
mustn't he have been invaginating?
mustn't we have been invaginating?
mustn't you have been invaginating?
mustn't they have been invaginating?