could err
Regelmä&szlig;iges Verb: err - erred- erred

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could err
you could err
she could err
we could err
you could err
they could err 	I could be erring
you could be erring
she could be erring
we could be erring
you could be erring
they could be erring	I could have erred
you could have erred
she could have erred
we could have erred
you could have erred
they could have erred	I could have been erring
you could have been erring
she could have been erring
we could have been erring
you could have been erring
they could have been erring	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not err
you could not err
she could not err
we could not err
you could not err
they could not err 	I could not be erring
you could not be erring
she could not be erring
we could not be erring
you could not be erring
they could not be erring	I could not have erred
you could not have erred
she could not have erred
we could not have erred
you could not have erred
they could not have erred	I could not have been erring
you could not have been erring
she could not have been erring
we could not have been erring
you could not have been erring
they could not have been erring	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I err?
could you err?
could she err?
could we err?
could you err?
could they err? 	could I be erring?
could you be erring?
could she be erring?
could we be erring?
could you be erring?
could they be erring? 	could I have erred?
could you have erred?
could she have erred?
could we have erred?
could you have erred?
could they have erred? 	could I have been erring?
could you have been erring?
could she have been erring?
could we have been erring?
could you have been erring?
could they have been erring? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not err?
could you not err?
could she not err?
could we not err?
could you not err?
could they not err? 	could I not be erring?
could you not be erring?
could she not be erring?
could we not be erring?
could you not be erring?
could they not be erring? 	could I not have erred?
could you not have erred?
could she not have erred?
could we not have erred?
could you not have erred?
could they not have erred? 	could I not have been erring?
could you not have been erring?
could she not have been erring?
could we not have been erring?
could you not have been erring?
could they not have been erring?