English verb conjugation
MAY DOUBLE

Regular verb: double - doubled - doubled

Affirmation

Simple form	V-ing form
I may double you may double he may double we may double you may double they may double	I may be doubling you may be doubling he may be doubling we may be doubling you may be doubling they may be doubling
Perfect	V-ing perfect
I may have doubled you may have doubled he may have doubled we may have doubled you may have doubled they may have doubled	I may have been doubling you may have been doubling he may have been doubling we may have been doubling you may have been doubling they may have been doubling

Negation

Simple form	V-ing form
I may not double you may not double he may not double we may not double you may not double they may not double	I may not be doubling you may not be doubling he may not be doubling we may not be doubling you may not be doubling they may not be doubling
Perfect	V-ing perfect
I may not have doubled you may not have doubled he may not have doubled we may not have doubled you may not have doubled they may not have doubled	I may not have been doubling you may not have been doubling he may not have been doubling we may not have been doubling you may not have been doubling they may not have been doubling

Interrogative form

Simple form	V-ing form
may I double? may you double? may he double? may we double? may you double? may they double?	may I be doubling? may you be doubling? may he be doubling? may we be doubling? may you be doubling? may they be doubling?
Perfect	V-ing perfect
may I have doubled? may you have doubled? may he have doubled? may we have doubled? may you have doubled? may they have doubled?	may I have been doubling? may you have been doubling? may he have been doubling? may we have been doubling? may you have been doubling? may they have been doubling?

Interro-negative form

Simple form	V-ing form
may I not double? may you not double? may he not double? may we not double? may you not double? may they not double?	may I not be doubling? may you not be doubling? may he not be doubling? may we not be doubling? may you not be doubling? may they not be doubling?
Perfect	V-ing perfect
may I not have doubled? may you not have doubled? may he not have doubled? may we not have doubled? may you not have doubled? may they not have doubled?	may I not have been doubling? may you not have been doubling? may he not have been doubling? may we not have been doubling? may you not have been doubling? may they not have been doubling?