could keen
Regelmä&szlig;iges Verb: keen - keened- keened

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could keen
you could keen
he could keen
we could keen
you could keen
they could keen 	I could be keening
you could be keening
he could be keening
we could be keening
you could be keening
they could be keening	I could have keened
you could have keened
he could have keened
we could have keened
you could have keened
they could have keened	I could have been keening
you could have been keening
he could have been keening
we could have been keening
you could have been keening
they could have been keening	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not keen
you could not keen
he could not keen
we could not keen
you could not keen
they could not keen 	I could not be keening
you could not be keening
he could not be keening
we could not be keening
you could not be keening
they could not be keening	I could not have keened
you could not have keened
he could not have keened
we could not have keened
you could not have keened
they could not have keened	I could not have been keening
you could not have been keening
he could not have been keening
we could not have been keening
you could not have been keening
they could not have been keening	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I keen?
could you keen?
could he keen?
could we keen?
could you keen?
could they keen? 	could I be keening?
could you be keening?
could he be keening?
could we be keening?
could you be keening?
could they be keening? 	could I have keened?
could you have keened?
could he have keened?
could we have keened?
could you have keened?
could they have keened? 	could I have been keening?
could you have been keening?
could he have been keening?
could we have been keening?
could you have been keening?
could they have been keening? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not keen?
could you not keen?
could he not keen?
could we not keen?
could you not keen?
could they not keen? 	could I not be keening?
could you not be keening?
could he not be keening?
could we not be keening?
could you not be keening?
could they not be keening? 	could I not have keened?
could you not have keened?
could he not have keened?
could we not have keened?
could you not have keened?
could they not have keened? 	could I not have been keening?
could you not have been keening?
could he not have been keening?
could we not have been keening?
could you not have been keening?
could they not have been keening?