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