could sign
Regelmä&szlig;iges Verb: sign - signed- signed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could sign
you could sign
he could sign
we could sign
you could sign
they could sign 	I could be signing
you could be signing
he could be signing
we could be signing
you could be signing
they could be signing	I could have signed
you could have signed
he could have signed
we could have signed
you could have signed
they could have signed	I could have been signing
you could have been signing
he could have been signing
we could have been signing
you could have been signing
they could have been signing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't sign
you couldn't sign
he couldn't sign
we couldn't sign
you couldn't sign
they couldn't sign 	I couldn't be signing
you couldn't be signing
he couldn't be signing
we couldn't be signing
you couldn't be signing
they couldn't be signing	I couldn't have signed
you couldn't have signed
he couldn't have signed
we couldn't have signed
you couldn't have signed
they couldn't have signed	I couldn't have been signing
you couldn't have been signing
he couldn't have been signing
we couldn't have been signing
you couldn't have been signing
they couldn't have been signing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I sign?
could you sign?
could he sign?
could we sign?
could you sign?
could they sign? 	could I be signing?
could you be signing?
could he be signing?
could we be signing?
could you be signing?
could they be signing? 	could I have signed?
could you have signed?
could he have signed?
could we have signed?
could you have signed?
could they have signed? 	could I have been signing?
could you have been signing?
could he have been signing?
could we have been signing?
could you have been signing?
could they have been signing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I sign?
couldn't you sign?
couldn't he sign?
couldn't we sign?
couldn't you sign?
couldn't they sign? 	couldn't I be signing?
couldn't you be signing?
couldn't he be signing?
couldn't we be signing?
couldn't you be signing?
couldn't they be signing? 	couldn't I have signed?
couldn't you have signed?
couldn't he have signed?
couldn't we have signed?
couldn't you have signed?
couldn't they have signed? 	couldn't I have been signing?
couldn't you have been signing?
couldn't he have been signing?
couldn't we have been signing?
couldn't you have been signing?
couldn't they have been signing?