must harmonise
Regular verb: harmonise - harmonised- harmonised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must harmonise
you must harmonise
he must harmonise
we must harmonise
you must harmonise
they must harmonise 	I must be harmonising
you must be harmonising
he must be harmonising
we must be harmonising
you must be harmonising
they must be harmonising	I must have harmonised
you must have harmonised
he must have harmonised
we must have harmonised
you must have harmonised
they must have harmonised	I must have been harmonising
you must have been harmonising
he must have been harmonising
we must have been harmonising
you must have been harmonising
they must have been harmonising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't harmonise
you mustn't harmonise
he mustn't harmonise
we mustn't harmonise
you mustn't harmonise
they mustn't harmonise 	I mustn't be harmonising
you mustn't be harmonising
he mustn't be harmonising
we mustn't be harmonising
you mustn't be harmonising
they mustn't be harmonising	I mustn't have harmonised
you mustn't have harmonised
he mustn't have harmonised
we mustn't have harmonised
you mustn't have harmonised
they mustn't have harmonised	I mustn't have been harmonising
you mustn't have been harmonising
he mustn't have been harmonising
we mustn't have been harmonising
you mustn't have been harmonising
they mustn't have been harmonising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I harmonise?
must you harmonise?
must he harmonise?
must we harmonise?
must you harmonise?
must they harmonise? 	must I be harmonising?
must you be harmonising?
must he be harmonising?
must we be harmonising?
must you be harmonising?
must they be harmonising? 	must I have harmonised?
must you have harmonised?
must he have harmonised?
must we have harmonised?
must you have harmonised?
must they have harmonised? 	must I have been harmonising?
must you have been harmonising?
must he have been harmonising?
must we have been harmonising?
must you have been harmonising?
must they have been harmonising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I harmonise?
mustn't you harmonise?
mustn't he harmonise?
mustn't we harmonise?
mustn't you harmonise?
mustn't they harmonise? 	mustn't I be harmonising?
mustn't you be harmonising?
mustn't he be harmonising?
mustn't we be harmonising?
mustn't you be harmonising?
mustn't they be harmonising? 	mustn't I have harmonised?
mustn't you have harmonised?
mustn't he have harmonised?
mustn't we have harmonised?
mustn't you have harmonised?
mustn't they have harmonised? 	mustn't I have been harmonising?
mustn't you have been harmonising?
mustn't he have been harmonising?
mustn't we have been harmonising?
mustn't you have been harmonising?
mustn't they have been harmonising?