could preinstruct
Verbo regolare: preinstruct - preinstructed- preinstructed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could preinstruct
you could preinstruct
she could preinstruct
we could preinstruct
you could preinstruct
they could preinstruct 	I could be preinstructing
you could be preinstructing
she could be preinstructing
we could be preinstructing
you could be preinstructing
they could be preinstructing	I could have preinstructed
you could have preinstructed
she could have preinstructed
we could have preinstructed
you could have preinstructed
they could have preinstructed	I could have been preinstructing
you could have been preinstructing
she could have been preinstructing
we could have been preinstructing
you could have been preinstructing
they could have been preinstructing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not preinstruct
you could not preinstruct
she could not preinstruct
we could not preinstruct
you could not preinstruct
they could not preinstruct 	I could not be preinstructing
you could not be preinstructing
she could not be preinstructing
we could not be preinstructing
you could not be preinstructing
they could not be preinstructing	I could not have preinstructed
you could not have preinstructed
she could not have preinstructed
we could not have preinstructed
you could not have preinstructed
they could not have preinstructed	I could not have been preinstructing
you could not have been preinstructing
she could not have been preinstructing
we could not have been preinstructing
you could not have been preinstructing
they could not have been preinstructing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I preinstruct?
could you preinstruct?
could she preinstruct?
could we preinstruct?
could you preinstruct?
could they preinstruct? 	could I be preinstructing?
could you be preinstructing?
could she be preinstructing?
could we be preinstructing?
could you be preinstructing?
could they be preinstructing? 	could I have preinstructed?
could you have preinstructed?
could she have preinstructed?
could we have preinstructed?
could you have preinstructed?
could they have preinstructed? 	could I have been preinstructing?
could you have been preinstructing?
could she have been preinstructing?
could we have been preinstructing?
could you have been preinstructing?
could they have been preinstructing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not preinstruct?
could you not preinstruct?
could she not preinstruct?
could we not preinstruct?
could you not preinstruct?
could they not preinstruct? 	could I not be preinstructing?
could you not be preinstructing?
could she not be preinstructing?
could we not be preinstructing?
could you not be preinstructing?
could they not be preinstructing? 	could I not have preinstructed?
could you not have preinstructed?
could she not have preinstructed?
could we not have preinstructed?
could you not have preinstructed?
could they not have preinstructed? 	could I not have been preinstructing?
could you not have been preinstructing?
could she not have been preinstructing?
could we not have been preinstructing?
could you not have been preinstructing?
could they not have been preinstructing?