could understudy
Regelmä&szlig;iges Verb: understudy - understudied- understudied

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could understudy
you could understudy
he could understudy
we could understudy
you could understudy
they could understudy 	I could be understudying
you could be understudying
he could be understudying
we could be understudying
you could be understudying
they could be understudying	I could have understudied
you could have understudied
he could have understudied
we could have understudied
you could have understudied
they could have understudied	I could have been understudying
you could have been understudying
he could have been understudying
we could have been understudying
you could have been understudying
they could have been understudying	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not understudy
you could not understudy
he could not understudy
we could not understudy
you could not understudy
they could not understudy 	I could not be understudying
you could not be understudying
he could not be understudying
we could not be understudying
you could not be understudying
they could not be understudying	I could not have understudied
you could not have understudied
he could not have understudied
we could not have understudied
you could not have understudied
they could not have understudied	I could not have been understudying
you could not have been understudying
he could not have been understudying
we could not have been understudying
you could not have been understudying
they could not have been understudying	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I understudy?
could you understudy?
could he understudy?
could we understudy?
could you understudy?
could they understudy? 	could I be understudying?
could you be understudying?
could he be understudying?
could we be understudying?
could you be understudying?
could they be understudying? 	could I have understudied?
could you have understudied?
could he have understudied?
could we have understudied?
could you have understudied?
could they have understudied? 	could I have been understudying?
could you have been understudying?
could he have been understudying?
could we have been understudying?
could you have been understudying?
could they have been understudying? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not understudy?
could you not understudy?
could he not understudy?
could we not understudy?
could you not understudy?
could they not understudy? 	could I not be understudying?
could you not be understudying?
could he not be understudying?
could we not be understudying?
could you not be understudying?
could they not be understudying? 	could I not have understudied?
could you not have understudied?
could he not have understudied?
could we not have understudied?
could you not have understudied?
could they not have understudied? 	could I not have been understudying?
could you not have been understudying?
could he not have been understudying?
could we not have been understudying?
could you not have been understudying?
could they not have been understudying?