must dissemble
Regular verb: dissemble - dissembled- dissembled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must dissemble
you must dissemble
he must dissemble
we must dissemble
you must dissemble
they must dissemble 	I must be dissembling
you must be dissembling
he must be dissembling
we must be dissembling
you must be dissembling
they must be dissembling	I must have dissembled
you must have dissembled
he must have dissembled
we must have dissembled
you must have dissembled
they must have dissembled	I must have been dissembling
you must have been dissembling
he must have been dissembling
we must have been dissembling
you must have been dissembling
they must have been dissembling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't dissemble
you mustn't dissemble
he mustn't dissemble
we mustn't dissemble
you mustn't dissemble
they mustn't dissemble 	I mustn't be dissembling
you mustn't be dissembling
he mustn't be dissembling
we mustn't be dissembling
you mustn't be dissembling
they mustn't be dissembling	I mustn't have dissembled
you mustn't have dissembled
he mustn't have dissembled
we mustn't have dissembled
you mustn't have dissembled
they mustn't have dissembled	I mustn't have been dissembling
you mustn't have been dissembling
he mustn't have been dissembling
we mustn't have been dissembling
you mustn't have been dissembling
they mustn't have been dissembling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I dissemble?
must you dissemble?
must he dissemble?
must we dissemble?
must you dissemble?
must they dissemble? 	must I be dissembling?
must you be dissembling?
must he be dissembling?
must we be dissembling?
must you be dissembling?
must they be dissembling? 	must I have dissembled?
must you have dissembled?
must he have dissembled?
must we have dissembled?
must you have dissembled?
must they have dissembled? 	must I have been dissembling?
must you have been dissembling?
must he have been dissembling?
must we have been dissembling?
must you have been dissembling?
must they have been dissembling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I dissemble?
mustn't you dissemble?
mustn't he dissemble?
mustn't we dissemble?
mustn't you dissemble?
mustn't they dissemble? 	mustn't I be dissembling?
mustn't you be dissembling?
mustn't he be dissembling?
mustn't we be dissembling?
mustn't you be dissembling?
mustn't they be dissembling? 	mustn't I have dissembled?
mustn't you have dissembled?
mustn't he have dissembled?
mustn't we have dissembled?
mustn't you have dissembled?
mustn't they have dissembled? 	mustn't I have been dissembling?
mustn't you have been dissembling?
mustn't he have been dissembling?
mustn't we have been dissembling?
mustn't you have been dissembling?
mustn't they have been dissembling?