I may quadruple you may quadruple he may quadruple we may quadruple you may quadruple they may quadruple
V-ing form
I may be quadrupling you may be quadrupling he may be quadrupling we may be quadrupling you may be quadrupling they may be quadrupling
Perfect
I may have quadrupled you may have quadrupled he may have quadrupled we may have quadrupled you may have quadrupled they may have quadrupled
V-ing perfect
I may have been quadrupling you may have been quadrupling he may have been quadrupling we may have been quadrupling you may have been quadrupling they may have been quadrupling
Negation
Simple form
I may not quadruple you may not quadruple he may not quadruple we may not quadruple you may not quadruple they may not quadruple
V-ing form
I may not be quadrupling you may not be quadrupling he may not be quadrupling we may not be quadrupling you may not be quadrupling they may not be quadrupling
Perfect
I may not have quadrupled you may not have quadrupled he may not have quadrupled we may not have quadrupled you may not have quadrupled they may not have quadrupled
V-ing perfect
I may not have been quadrupling you may not have been quadrupling he may not have been quadrupling we may not have been quadrupling you may not have been quadrupling they may not have been quadrupling
Interrogative form
Simple form
may I quadruple? may you quadruple? may he quadruple? may we quadruple? may you quadruple? may they quadruple?
V-ing form
may I be quadrupling? may you be quadrupling? may he be quadrupling? may we be quadrupling? may you be quadrupling? may they be quadrupling?
Perfect
may I have quadrupled? may you have quadrupled? may he have quadrupled? may we have quadrupled? may you have quadrupled? may they have quadrupled?
V-ing perfect
may I have been quadrupling? may you have been quadrupling? may he have been quadrupling? may we have been quadrupling? may you have been quadrupling? may they have been quadrupling?
Interro-negative form
Simple form
may I not quadruple? may you not quadruple? may he not quadruple? may we not quadruple? may you not quadruple? may they not quadruple?
V-ing form
may I not be quadrupling? may you not be quadrupling? may he not be quadrupling? may we not be quadrupling? may you not be quadrupling? may they not be quadrupling?
Perfect
may I not have quadrupled? may you not have quadrupled? may he not have quadrupled? may we not have quadrupled? may you not have quadrupled? may they not have quadrupled?
V-ing perfect
may I not have been quadrupling? may you not have been quadrupling? may he not have been quadrupling? may we not have been quadrupling? may you not have been quadrupling? may they not have been quadrupling?