must desensitise
Regular verb: desensitise - desensitised- desensitised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must desensitise
you must desensitise
he must desensitise
we must desensitise
you must desensitise
they must desensitise 	I must be desensitising
you must be desensitising
he must be desensitising
we must be desensitising
you must be desensitising
they must be desensitising	I must have desensitised
you must have desensitised
he must have desensitised
we must have desensitised
you must have desensitised
they must have desensitised	I must have been desensitising
you must have been desensitising
he must have been desensitising
we must have been desensitising
you must have been desensitising
they must have been desensitising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't desensitise
you mustn't desensitise
he mustn't desensitise
we mustn't desensitise
you mustn't desensitise
they mustn't desensitise 	I mustn't be desensitising
you mustn't be desensitising
he mustn't be desensitising
we mustn't be desensitising
you mustn't be desensitising
they mustn't be desensitising	I mustn't have desensitised
you mustn't have desensitised
he mustn't have desensitised
we mustn't have desensitised
you mustn't have desensitised
they mustn't have desensitised	I mustn't have been desensitising
you mustn't have been desensitising
he mustn't have been desensitising
we mustn't have been desensitising
you mustn't have been desensitising
they mustn't have been desensitising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I desensitise?
must you desensitise?
must he desensitise?
must we desensitise?
must you desensitise?
must they desensitise? 	must I be desensitising?
must you be desensitising?
must he be desensitising?
must we be desensitising?
must you be desensitising?
must they be desensitising? 	must I have desensitised?
must you have desensitised?
must he have desensitised?
must we have desensitised?
must you have desensitised?
must they have desensitised? 	must I have been desensitising?
must you have been desensitising?
must he have been desensitising?
must we have been desensitising?
must you have been desensitising?
must they have been desensitising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I desensitise?
mustn't you desensitise?
mustn't he desensitise?
mustn't we desensitise?
mustn't you desensitise?
mustn't they desensitise? 	mustn't I be desensitising?
mustn't you be desensitising?
mustn't he be desensitising?
mustn't we be desensitising?
mustn't you be desensitising?
mustn't they be desensitising? 	mustn't I have desensitised?
mustn't you have desensitised?
mustn't he have desensitised?
mustn't we have desensitised?
mustn't you have desensitised?
mustn't they have desensitised? 	mustn't I have been desensitising?
mustn't you have been desensitising?
mustn't he have been desensitising?
mustn't we have been desensitising?
mustn't you have been desensitising?
mustn't they have been desensitising?