must liase
Verbe régulier : liase - liased- liased

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must liase
you must liase
he must liase
we must liase
you must liase
they must liase 	I must be liasing
you must be liasing
he must be liasing
we must be liasing
you must be liasing
they must be liasing	I must have liased
you must have liased
he must have liased
we must have liased
you must have liased
they must have liased	I must have been liasing
you must have been liasing
he must have been liasing
we must have been liasing
you must have been liasing
they must have been liasing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't liase
you mustn't liase
he mustn't liase
we mustn't liase
you mustn't liase
they mustn't liase 	I mustn't be liasing
you mustn't be liasing
he mustn't be liasing
we mustn't be liasing
you mustn't be liasing
they mustn't be liasing	I mustn't have liased
you mustn't have liased
he mustn't have liased
we mustn't have liased
you mustn't have liased
they mustn't have liased	I mustn't have been liasing
you mustn't have been liasing
he mustn't have been liasing
we mustn't have been liasing
you mustn't have been liasing
they mustn't have been liasing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I liase?
must you liase?
must he liase?
must we liase?
must you liase?
must they liase? 	must I be liasing?
must you be liasing?
must he be liasing?
must we be liasing?
must you be liasing?
must they be liasing? 	must I have liased?
must you have liased?
must he have liased?
must we have liased?
must you have liased?
must they have liased? 	must I have been liasing?
must you have been liasing?
must he have been liasing?
must we have been liasing?
must you have been liasing?
must they have been liasing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I liase?
mustn't you liase?
mustn't he liase?
mustn't we liase?
mustn't you liase?
mustn't they liase? 	mustn't I be liasing?
mustn't you be liasing?
mustn't he be liasing?
mustn't we be liasing?
mustn't you be liasing?
mustn't they be liasing? 	mustn't I have liased?
mustn't you have liased?
mustn't he have liased?
mustn't we have liased?
mustn't you have liased?
mustn't they have liased? 	mustn't I have been liasing?
mustn't you have been liasing?
mustn't he have been liasing?
mustn't we have been liasing?
mustn't you have been liasing?
mustn't they have been liasing?