can retroact
Verbo regolare: retroact - retroacted- retroacted

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can retroact
you can retroact
she can retroact
we can retroact
you can retroact
they can retroact 	I can be retroacting
you can be retroacting
she can be retroacting
we can be retroacting
you can be retroacting
they can be retroacting	I can have retroacted
you can have retroacted
she can have retroacted
we can have retroacted
you can have retroacted
they can have retroacted	I can have been retroacting
you can have been retroacting
she can have been retroacting
we can have been retroacting
you can have been retroacting
they can have been retroacting	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot retroact
you cannot retroact
she cannot retroact
we cannot retroact
you cannot retroact
they cannot retroact 	I cannot be retroacting
you cannot be retroacting
she cannot be retroacting
we cannot be retroacting
you cannot be retroacting
they cannot be retroacting	I cannot have retroacted
you cannot have retroacted
she cannot have retroacted
we cannot have retroacted
you cannot have retroacted
they cannot have retroacted	I cannot have been retroacting
you cannot have been retroacting
she cannot have been retroacting
we cannot have been retroacting
you cannot have been retroacting
they cannot have been retroacting	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I retroact?
can you retroact?
can she retroact?
can we retroact?
can you retroact?
can they retroact? 	can I be retroacting?
can you be retroacting?
can she be retroacting?
can we be retroacting?
can you be retroacting?
can they be retroacting? 	can I have retroacted?
can you have retroacted?
can she have retroacted?
can we have retroacted?
can you have retroacted?
can they have retroacted? 	can I have been retroacting?
can you have been retroacting?
can she have been retroacting?
can we have been retroacting?
can you have been retroacting?
can they have been retroacting? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not retroact?
can you not retroact?
can she not retroact?
can we not retroact?
can you not retroact?
can they not retroact? 	can I not be retroacting?
can you not be retroacting?
can she not be retroacting?
can we not be retroacting?
can you not be retroacting?
can they not be retroacting? 	can I not have retroacted?
can you not have retroacted?
can she not have retroacted?
can we not have retroacted?
can you not have retroacted?
can they not have retroacted? 	can I not have been retroacting?
can you not have been retroacting?
can she not have been retroacting?
can we not have been retroacting?
can you not have been retroacting?
can they not have been retroacting?