must roof
Verbe régulier : roof - roofed- roofed
Traduction française : couvrir d'un toit 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must roof
you must roof
she must roof
we must roof
you must roof
they must roof 	I must be roofing
you must be roofing
she must be roofing
we must be roofing
you must be roofing
they must be roofing	I must have roofed
you must have roofed
she must have roofed
we must have roofed
you must have roofed
they must have roofed	I must have been roofing
you must have been roofing
she must have been roofing
we must have been roofing
you must have been roofing
they must have been roofing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't roof
you mustn't roof
she mustn't roof
we mustn't roof
you mustn't roof
they mustn't roof 	I mustn't be roofing
you mustn't be roofing
she mustn't be roofing
we mustn't be roofing
you mustn't be roofing
they mustn't be roofing	I mustn't have roofed
you mustn't have roofed
she mustn't have roofed
we mustn't have roofed
you mustn't have roofed
they mustn't have roofed	I mustn't have been roofing
you mustn't have been roofing
she mustn't have been roofing
we mustn't have been roofing
you mustn't have been roofing
they mustn't have been roofing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I roof?
must you roof?
must she roof?
must we roof?
must you roof?
must they roof? 	must I be roofing?
must you be roofing?
must she be roofing?
must we be roofing?
must you be roofing?
must they be roofing? 	must I have roofed?
must you have roofed?
must she have roofed?
must we have roofed?
must you have roofed?
must they have roofed? 	must I have been roofing?
must you have been roofing?
must she have been roofing?
must we have been roofing?
must you have been roofing?
must they have been roofing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I roof?
mustn't you roof?
mustn't she roof?
mustn't we roof?
mustn't you roof?
mustn't they roof? 	mustn't I be roofing?
mustn't you be roofing?
mustn't she be roofing?
mustn't we be roofing?
mustn't you be roofing?
mustn't they be roofing? 	mustn't I have roofed?
mustn't you have roofed?
mustn't she have roofed?
mustn't we have roofed?
mustn't you have roofed?
mustn't they have roofed? 	mustn't I have been roofing?
mustn't you have been roofing?
mustn't she have been roofing?
mustn't we have been roofing?
mustn't you have been roofing?
mustn't they have been roofing?