may retroact
Verbo regolare: retroact - retroacted- retroacted

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

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I may not retroact
you may not retroact
he may not retroact
we may not retroact
you may not retroact
they may not retroact 	I may not be retroacting
you may not be retroacting
he may not be retroacting
we may not be retroacting
you may not be retroacting
they may not be retroacting	I may not have retroacted
you may not have retroacted
he may not have retroacted
we may not have retroacted
you may not have retroacted
they may not have retroacted	I may not have been retroacting
you may not have been retroacting
he may not have been retroacting
we may not have been retroacting
you may not have been retroacting
they may not have been retroacting	

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

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