could authenticate
Regelmä&szlig;iges Verb: authenticate - authenticated- authenticated

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could authenticate
you could authenticate
he could authenticate
we could authenticate
you could authenticate
they could authenticate 	I could be authenticating
you could be authenticating
he could be authenticating
we could be authenticating
you could be authenticating
they could be authenticating	I could have authenticated
you could have authenticated
he could have authenticated
we could have authenticated
you could have authenticated
they could have authenticated	I could have been authenticating
you could have been authenticating
he could have been authenticating
we could have been authenticating
you could have been authenticating
they could have been authenticating	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not authenticate
you could not authenticate
he could not authenticate
we could not authenticate
you could not authenticate
they could not authenticate 	I could not be authenticating
you could not be authenticating
he could not be authenticating
we could not be authenticating
you could not be authenticating
they could not be authenticating	I could not have authenticated
you could not have authenticated
he could not have authenticated
we could not have authenticated
you could not have authenticated
they could not have authenticated	I could not have been authenticating
you could not have been authenticating
he could not have been authenticating
we could not have been authenticating
you could not have been authenticating
they could not have been authenticating	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I authenticate?
could you authenticate?
could he authenticate?
could we authenticate?
could you authenticate?
could they authenticate? 	could I be authenticating?
could you be authenticating?
could he be authenticating?
could we be authenticating?
could you be authenticating?
could they be authenticating? 	could I have authenticated?
could you have authenticated?
could he have authenticated?
could we have authenticated?
could you have authenticated?
could they have authenticated? 	could I have been authenticating?
could you have been authenticating?
could he have been authenticating?
could we have been authenticating?
could you have been authenticating?
could they have been authenticating? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not authenticate?
could you not authenticate?
could he not authenticate?
could we not authenticate?
could you not authenticate?
could they not authenticate? 	could I not be authenticating?
could you not be authenticating?
could he not be authenticating?
could we not be authenticating?
could you not be authenticating?
could they not be authenticating? 	could I not have authenticated?
could you not have authenticated?
could he not have authenticated?
could we not have authenticated?
could you not have authenticated?
could they not have authenticated? 	could I not have been authenticating?
could you not have been authenticating?
could he not have been authenticating?
could we not have been authenticating?
could you not have been authenticating?
could they not have been authenticating?