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 mayn't retroact you mayn't retroact he mayn't retroact we mayn't retroact you mayn't retroact they mayn't retroact	I mayn't be retroacting you mayn't be retroacting he mayn't be retroacting we mayn't be retroacting you mayn't be retroacting they mayn't be retroacting
Perfect	V-ing perfect
I mayn't have retroacted you mayn't have retroacted he mayn't have retroacted we mayn't have retroacted you mayn't have retroacted they mayn't have retroacted	I mayn't have been retroacting you mayn't have been retroacting he mayn't have been retroacting we mayn't have been retroacting you mayn't have been retroacting they mayn't 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
mayn't I retroact? mayn't you retroact? mayn't he retroact? mayn't we retroact? mayn't you retroact? mayn't they retroact?	mayn't I be retroacting? mayn't you be retroacting? mayn't he be retroacting? mayn't we be retroacting? mayn't you be retroacting? mayn't they be retroacting?
Perfect	V-ing perfect
mayn't I have retroacted? mayn't you have retroacted? mayn't he have retroacted? mayn't we have retroacted? mayn't you have retroacted? mayn't they have retroacted?	mayn't I have been retroacting? mayn't you have been retroacting? mayn't he have been retroacting? mayn't we have been retroacting? mayn't you have been retroacting? mayn't they have been retroacting?