could substitute
Regelmä&szlig;iges Verb: substitute - substituted- substituted

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could substitute
you could substitute
she could substitute
we could substitute
you could substitute
they could substitute 	I could be substituting
you could be substituting
she could be substituting
we could be substituting
you could be substituting
they could be substituting	I could have substituted
you could have substituted
she could have substituted
we could have substituted
you could have substituted
they could have substituted	I could have been substituting
you could have been substituting
she could have been substituting
we could have been substituting
you could have been substituting
they could have been substituting	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not substitute
you could not substitute
she could not substitute
we could not substitute
you could not substitute
they could not substitute 	I could not be substituting
you could not be substituting
she could not be substituting
we could not be substituting
you could not be substituting
they could not be substituting	I could not have substituted
you could not have substituted
she could not have substituted
we could not have substituted
you could not have substituted
they could not have substituted	I could not have been substituting
you could not have been substituting
she could not have been substituting
we could not have been substituting
you could not have been substituting
they could not have been substituting	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I substitute?
could you substitute?
could she substitute?
could we substitute?
could you substitute?
could they substitute? 	could I be substituting?
could you be substituting?
could she be substituting?
could we be substituting?
could you be substituting?
could they be substituting? 	could I have substituted?
could you have substituted?
could she have substituted?
could we have substituted?
could you have substituted?
could they have substituted? 	could I have been substituting?
could you have been substituting?
could she have been substituting?
could we have been substituting?
could you have been substituting?
could they have been substituting? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not substitute?
could you not substitute?
could she not substitute?
could we not substitute?
could you not substitute?
could they not substitute? 	could I not be substituting?
could you not be substituting?
could she not be substituting?
could we not be substituting?
could you not be substituting?
could they not be substituting? 	could I not have substituted?
could you not have substituted?
could she not have substituted?
could we not have substituted?
could you not have substituted?
could they not have substituted? 	could I not have been substituting?
could you not have been substituting?
could she not have been substituting?
could we not have been substituting?
could you not have been substituting?
could they not have been substituting?