must fantasise
Regular verb: fantasise - fantasised- fantasised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must fantasise
you must fantasise
she must fantasise
we must fantasise
you must fantasise
they must fantasise 	I must be fantasising
you must be fantasising
she must be fantasising
we must be fantasising
you must be fantasising
they must be fantasising	I must have fantasised
you must have fantasised
she must have fantasised
we must have fantasised
you must have fantasised
they must have fantasised	I must have been fantasising
you must have been fantasising
she must have been fantasising
we must have been fantasising
you must have been fantasising
they must have been fantasising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't fantasise
you mustn't fantasise
she mustn't fantasise
we mustn't fantasise
you mustn't fantasise
they mustn't fantasise 	I mustn't be fantasising
you mustn't be fantasising
she mustn't be fantasising
we mustn't be fantasising
you mustn't be fantasising
they mustn't be fantasising	I mustn't have fantasised
you mustn't have fantasised
she mustn't have fantasised
we mustn't have fantasised
you mustn't have fantasised
they mustn't have fantasised	I mustn't have been fantasising
you mustn't have been fantasising
she mustn't have been fantasising
we mustn't have been fantasising
you mustn't have been fantasising
they mustn't have been fantasising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I fantasise?
must you fantasise?
must she fantasise?
must we fantasise?
must you fantasise?
must they fantasise? 	must I be fantasising?
must you be fantasising?
must she be fantasising?
must we be fantasising?
must you be fantasising?
must they be fantasising? 	must I have fantasised?
must you have fantasised?
must she have fantasised?
must we have fantasised?
must you have fantasised?
must they have fantasised? 	must I have been fantasising?
must you have been fantasising?
must she have been fantasising?
must we have been fantasising?
must you have been fantasising?
must they have been fantasising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I fantasise?
mustn't you fantasise?
mustn't she fantasise?
mustn't we fantasise?
mustn't you fantasise?
mustn't they fantasise? 	mustn't I be fantasising?
mustn't you be fantasising?
mustn't she be fantasising?
mustn't we be fantasising?
mustn't you be fantasising?
mustn't they be fantasising? 	mustn't I have fantasised?
mustn't you have fantasised?
mustn't she have fantasised?
mustn't we have fantasised?
mustn't you have fantasised?
mustn't they have fantasised? 	mustn't I have been fantasising?
mustn't you have been fantasising?
mustn't she have been fantasising?
mustn't we have been fantasising?
mustn't you have been fantasising?
mustn't they have been fantasising?