could tough
Regelmä&szlig;iges Verb: tough - toughed- toughed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could tough
you could tough
she could tough
we could tough
you could tough
they could tough 	I could be toughing
you could be toughing
she could be toughing
we could be toughing
you could be toughing
they could be toughing	I could have toughed
you could have toughed
she could have toughed
we could have toughed
you could have toughed
they could have toughed	I could have been toughing
you could have been toughing
she could have been toughing
we could have been toughing
you could have been toughing
they could have been toughing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not tough
you could not tough
she could not tough
we could not tough
you could not tough
they could not tough 	I could not be toughing
you could not be toughing
she could not be toughing
we could not be toughing
you could not be toughing
they could not be toughing	I could not have toughed
you could not have toughed
she could not have toughed
we could not have toughed
you could not have toughed
they could not have toughed	I could not have been toughing
you could not have been toughing
she could not have been toughing
we could not have been toughing
you could not have been toughing
they could not have been toughing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I tough?
could you tough?
could she tough?
could we tough?
could you tough?
could they tough? 	could I be toughing?
could you be toughing?
could she be toughing?
could we be toughing?
could you be toughing?
could they be toughing? 	could I have toughed?
could you have toughed?
could she have toughed?
could we have toughed?
could you have toughed?
could they have toughed? 	could I have been toughing?
could you have been toughing?
could she have been toughing?
could we have been toughing?
could you have been toughing?
could they have been toughing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not tough?
could you not tough?
could she not tough?
could we not tough?
could you not tough?
could they not tough? 	could I not be toughing?
could you not be toughing?
could she not be toughing?
could we not be toughing?
could you not be toughing?
could they not be toughing? 	could I not have toughed?
could you not have toughed?
could she not have toughed?
could we not have toughed?
could you not have toughed?
could they not have toughed? 	could I not have been toughing?
could you not have been toughing?
could she not have been toughing?
could we not have been toughing?
could you not have been toughing?
could they not have been toughing?