English verb conjugation
MAY RETROACT

Regular verb: retroact - retroacted - retroacted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?