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 could not roof
you could not roof
he could not roof
we could not roof
you could not roof
they could not roof 	I could not be roofing
you could not be roofing
he could not be roofing
we could not be roofing
you could not be roofing
they could not be roofing	I could not have roofed
you could not have roofed
he could not have roofed
we could not have roofed
you could not have roofed
they could not have roofed	I could not have been roofing
you could not have been roofing
he could not have been roofing
we could not have been roofing
you could not have been roofing
they could not 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 	
could I not roof?
could you not roof?
could he not roof?
could we not roof?
could you not roof?
could they not roof? 	could I not be roofing?
could you not be roofing?
could he not be roofing?
could we not be roofing?
could you not be roofing?
could they not be roofing? 	could I not have roofed?
could you not have roofed?
could he not have roofed?
could we not have roofed?
could you not have roofed?
could they not have roofed? 	could I not have been roofing?
could you not have been roofing?
could he not have been roofing?
could we not have been roofing?
could you not have been roofing?
could they not have been roofing?