must organise
Verbe régulier : organise - organised- organised
Traduction française : organiser - se syndiquer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must organise
you must organise
he must organise
we must organise
you must organise
they must organise 	I must be organising
you must be organising
he must be organising
we must be organising
you must be organising
they must be organising	I must have organised
you must have organised
he must have organised
we must have organised
you must have organised
they must have organised	I must have been organising
you must have been organising
he must have been organising
we must have been organising
you must have been organising
they must have been organising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't organise
you mustn't organise
he mustn't organise
we mustn't organise
you mustn't organise
they mustn't organise 	I mustn't be organising
you mustn't be organising
he mustn't be organising
we mustn't be organising
you mustn't be organising
they mustn't be organising	I mustn't have organised
you mustn't have organised
he mustn't have organised
we mustn't have organised
you mustn't have organised
they mustn't have organised	I mustn't have been organising
you mustn't have been organising
he mustn't have been organising
we mustn't have been organising
you mustn't have been organising
they mustn't have been organising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I organise?
must you organise?
must he organise?
must we organise?
must you organise?
must they organise? 	must I be organising?
must you be organising?
must he be organising?
must we be organising?
must you be organising?
must they be organising? 	must I have organised?
must you have organised?
must he have organised?
must we have organised?
must you have organised?
must they have organised? 	must I have been organising?
must you have been organising?
must he have been organising?
must we have been organising?
must you have been organising?
must they have been organising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I organise?
mustn't you organise?
mustn't he organise?
mustn't we organise?
mustn't you organise?
mustn't they organise? 	mustn't I be organising?
mustn't you be organising?
mustn't he be organising?
mustn't we be organising?
mustn't you be organising?
mustn't they be organising? 	mustn't I have organised?
mustn't you have organised?
mustn't he have organised?
mustn't we have organised?
mustn't you have organised?
mustn't they have organised? 	mustn't I have been organising?
mustn't you have been organising?
mustn't he have been organising?
mustn't we have been organising?
mustn't you have been organising?
mustn't they have been organising?