must interspace
Verbe régulier : interspace - interspaced- interspaced

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must interspace
you must interspace
she must interspace
we must interspace
you must interspace
they must interspace 	I must be interspacing
you must be interspacing
she must be interspacing
we must be interspacing
you must be interspacing
they must be interspacing	I must have interspaced
you must have interspaced
she must have interspaced
we must have interspaced
you must have interspaced
they must have interspaced	I must have been interspacing
you must have been interspacing
she must have been interspacing
we must have been interspacing
you must have been interspacing
they must have been interspacing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't interspace
you mustn't interspace
she mustn't interspace
we mustn't interspace
you mustn't interspace
they mustn't interspace 	I mustn't be interspacing
you mustn't be interspacing
she mustn't be interspacing
we mustn't be interspacing
you mustn't be interspacing
they mustn't be interspacing	I mustn't have interspaced
you mustn't have interspaced
she mustn't have interspaced
we mustn't have interspaced
you mustn't have interspaced
they mustn't have interspaced	I mustn't have been interspacing
you mustn't have been interspacing
she mustn't have been interspacing
we mustn't have been interspacing
you mustn't have been interspacing
they mustn't have been interspacing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I interspace?
must you interspace?
must she interspace?
must we interspace?
must you interspace?
must they interspace? 	must I be interspacing?
must you be interspacing?
must she be interspacing?
must we be interspacing?
must you be interspacing?
must they be interspacing? 	must I have interspaced?
must you have interspaced?
must she have interspaced?
must we have interspaced?
must you have interspaced?
must they have interspaced? 	must I have been interspacing?
must you have been interspacing?
must she have been interspacing?
must we have been interspacing?
must you have been interspacing?
must they have been interspacing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I interspace?
mustn't you interspace?
mustn't she interspace?
mustn't we interspace?
mustn't you interspace?
mustn't they interspace? 	mustn't I be interspacing?
mustn't you be interspacing?
mustn't she be interspacing?
mustn't we be interspacing?
mustn't you be interspacing?
mustn't they be interspacing? 	mustn't I have interspaced?
mustn't you have interspaced?
mustn't she have interspaced?
mustn't we have interspaced?
mustn't you have interspaced?
mustn't they have interspaced? 	mustn't I have been interspacing?
mustn't you have been interspacing?
mustn't she have been interspacing?
mustn't we have been interspacing?
mustn't you have been interspacing?
mustn't they have been interspacing?