could backcross
Regelmä&szlig;iges Verb: backcross - backcrossed- backcrossed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could backcross
you could backcross
he could backcross
we could backcross
you could backcross
they could backcross 	I could be backcrossing
you could be backcrossing
he could be backcrossing
we could be backcrossing
you could be backcrossing
they could be backcrossing	I could have backcrossed
you could have backcrossed
he could have backcrossed
we could have backcrossed
you could have backcrossed
they could have backcrossed	I could have been backcrossing
you could have been backcrossing
he could have been backcrossing
we could have been backcrossing
you could have been backcrossing
they could have been backcrossing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't backcross
you couldn't backcross
he couldn't backcross
we couldn't backcross
you couldn't backcross
they couldn't backcross 	I couldn't be backcrossing
you couldn't be backcrossing
he couldn't be backcrossing
we couldn't be backcrossing
you couldn't be backcrossing
they couldn't be backcrossing	I couldn't have backcrossed
you couldn't have backcrossed
he couldn't have backcrossed
we couldn't have backcrossed
you couldn't have backcrossed
they couldn't have backcrossed	I couldn't have been backcrossing
you couldn't have been backcrossing
he couldn't have been backcrossing
we couldn't have been backcrossing
you couldn't have been backcrossing
they couldn't have been backcrossing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I backcross?
could you backcross?
could he backcross?
could we backcross?
could you backcross?
could they backcross? 	could I be backcrossing?
could you be backcrossing?
could he be backcrossing?
could we be backcrossing?
could you be backcrossing?
could they be backcrossing? 	could I have backcrossed?
could you have backcrossed?
could he have backcrossed?
could we have backcrossed?
could you have backcrossed?
could they have backcrossed? 	could I have been backcrossing?
could you have been backcrossing?
could he have been backcrossing?
could we have been backcrossing?
could you have been backcrossing?
could they have been backcrossing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I backcross?
couldn't you backcross?
couldn't he backcross?
couldn't we backcross?
couldn't you backcross?
couldn't they backcross? 	couldn't I be backcrossing?
couldn't you be backcrossing?
couldn't he be backcrossing?
couldn't we be backcrossing?
couldn't you be backcrossing?
couldn't they be backcrossing? 	couldn't I have backcrossed?
couldn't you have backcrossed?
couldn't he have backcrossed?
couldn't we have backcrossed?
couldn't you have backcrossed?
couldn't they have backcrossed? 	couldn't I have been backcrossing?
couldn't you have been backcrossing?
couldn't he have been backcrossing?
couldn't we have been backcrossing?
couldn't you have been backcrossing?
couldn't they have been backcrossing?