must slenderise
Regular verb: slenderise - slenderised- slenderised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slenderise
you must slenderise
he must slenderise
we must slenderise
you must slenderise
they must slenderise 	I must be slenderising
you must be slenderising
he must be slenderising
we must be slenderising
you must be slenderising
they must be slenderising	I must have slenderised
you must have slenderised
he must have slenderised
we must have slenderised
you must have slenderised
they must have slenderised	I must have been slenderising
you must have been slenderising
he must have been slenderising
we must have been slenderising
you must have been slenderising
they must have been slenderising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't slenderise
you mustn't slenderise
he mustn't slenderise
we mustn't slenderise
you mustn't slenderise
they mustn't slenderise 	I mustn't be slenderising
you mustn't be slenderising
he mustn't be slenderising
we mustn't be slenderising
you mustn't be slenderising
they mustn't be slenderising	I mustn't have slenderised
you mustn't have slenderised
he mustn't have slenderised
we mustn't have slenderised
you mustn't have slenderised
they mustn't have slenderised	I mustn't have been slenderising
you mustn't have been slenderising
he mustn't have been slenderising
we mustn't have been slenderising
you mustn't have been slenderising
they mustn't have been slenderising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slenderise?
must you slenderise?
must he slenderise?
must we slenderise?
must you slenderise?
must they slenderise? 	must I be slenderising?
must you be slenderising?
must he be slenderising?
must we be slenderising?
must you be slenderising?
must they be slenderising? 	must I have slenderised?
must you have slenderised?
must he have slenderised?
must we have slenderised?
must you have slenderised?
must they have slenderised? 	must I have been slenderising?
must you have been slenderising?
must he have been slenderising?
must we have been slenderising?
must you have been slenderising?
must they have been slenderising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I slenderise?
mustn't you slenderise?
mustn't he slenderise?
mustn't we slenderise?
mustn't you slenderise?
mustn't they slenderise? 	mustn't I be slenderising?
mustn't you be slenderising?
mustn't he be slenderising?
mustn't we be slenderising?
mustn't you be slenderising?
mustn't they be slenderising? 	mustn't I have slenderised?
mustn't you have slenderised?
mustn't he have slenderised?
mustn't we have slenderised?
mustn't you have slenderised?
mustn't they have slenderised? 	mustn't I have been slenderising?
mustn't you have been slenderising?
mustn't he have been slenderising?
mustn't we have been slenderising?
mustn't you have been slenderising?
mustn't they have been slenderising?