could roof
Regelmä&szlig;iges Verb: roof - roofed- roofed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could roof
you could roof
he could roof
we could roof
you could roof
they could roof 	I could be roofing
you could be roofing
he could be roofing
we could be roofing
you could be roofing
they could be roofing	I could have roofed
you could have roofed
he could have roofed
we could have roofed
you could have roofed
they could have roofed	I could have been roofing
you could have been roofing
he could have been roofing
we could have been roofing
you could have been roofing
they could have been roofing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't roof
you couldn't roof
he couldn't roof
we couldn't roof
you couldn't roof
they couldn't roof 	I couldn't be roofing
you couldn't be roofing
he couldn't be roofing
we couldn't be roofing
you couldn't be roofing
they couldn't be roofing	I couldn't have roofed
you couldn't have roofed
he couldn't have roofed
we couldn't have roofed
you couldn't have roofed
they couldn't have roofed	I couldn't have been roofing
you couldn't have been roofing
he couldn't have been roofing
we couldn't have been roofing
you couldn't have been roofing
they couldn't have been roofing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I roof?
could you roof?
could he roof?
could we roof?
could you roof?
could they roof? 	could I be roofing?
could you be roofing?
could he be roofing?
could we be roofing?
could you be roofing?
could they be roofing? 	could I have roofed?
could you have roofed?
could he have roofed?
could we have roofed?
could you have roofed?
could they have roofed? 	could I have been roofing?
could you have been roofing?
could he have been roofing?
could we have been roofing?
could you have been roofing?
could they have been roofing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I roof?
couldn't you roof?
couldn't he roof?
couldn't we roof?
couldn't you roof?
couldn't they roof? 	couldn't I be roofing?
couldn't you be roofing?
couldn't he be roofing?
couldn't we be roofing?
couldn't you be roofing?
couldn't they be roofing? 	couldn't I have roofed?
couldn't you have roofed?
couldn't he have roofed?
couldn't we have roofed?
couldn't you have roofed?
couldn't they have roofed? 	couldn't I have been roofing?
couldn't you have been roofing?
couldn't he have been roofing?
couldn't we have been roofing?
couldn't you have been roofing?
couldn't they have been roofing?