must delight
Regular verb: delight - delighted- delighted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must delight
you must delight
she must delight
we must delight
you must delight
they must delight 	I must be delighting
you must be delighting
she must be delighting
we must be delighting
you must be delighting
they must be delighting	I must have delighted
you must have delighted
she must have delighted
we must have delighted
you must have delighted
they must have delighted	I must have been delighting
you must have been delighting
she must have been delighting
we must have been delighting
you must have been delighting
they must have been delighting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't delight
you mustn't delight
she mustn't delight
we mustn't delight
you mustn't delight
they mustn't delight 	I mustn't be delighting
you mustn't be delighting
she mustn't be delighting
we mustn't be delighting
you mustn't be delighting
they mustn't be delighting	I mustn't have delighted
you mustn't have delighted
she mustn't have delighted
we mustn't have delighted
you mustn't have delighted
they mustn't have delighted	I mustn't have been delighting
you mustn't have been delighting
she mustn't have been delighting
we mustn't have been delighting
you mustn't have been delighting
they mustn't have been delighting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I delight?
must you delight?
must she delight?
must we delight?
must you delight?
must they delight? 	must I be delighting?
must you be delighting?
must she be delighting?
must we be delighting?
must you be delighting?
must they be delighting? 	must I have delighted?
must you have delighted?
must she have delighted?
must we have delighted?
must you have delighted?
must they have delighted? 	must I have been delighting?
must you have been delighting?
must she have been delighting?
must we have been delighting?
must you have been delighting?
must they have been delighting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I delight?
mustn't you delight?
mustn't she delight?
mustn't we delight?
mustn't you delight?
mustn't they delight? 	mustn't I be delighting?
mustn't you be delighting?
mustn't she be delighting?
mustn't we be delighting?
mustn't you be delighting?
mustn't they be delighting? 	mustn't I have delighted?
mustn't you have delighted?
mustn't she have delighted?
mustn't we have delighted?
mustn't you have delighted?
mustn't they have delighted? 	mustn't I have been delighting?
mustn't you have been delighting?
mustn't she have been delighting?
mustn't we have been delighting?
mustn't you have been delighting?
mustn't they have been delighting?