I may fax you may fax she may fax we may fax you may fax they may fax
V-ing form
I may be faxing you may be faxing she may be faxing we may be faxing you may be faxing they may be faxing
Perfect
I may have faxed you may have faxed she may have faxed we may have faxed you may have faxed they may have faxed
V-ing perfect
I may have been faxing you may have been faxing she may have been faxing we may have been faxing you may have been faxing they may have been faxing
Negation
Simple form
I may not fax you may not fax she may not fax we may not fax you may not fax they may not fax
V-ing form
I may not be faxing you may not be faxing she may not be faxing we may not be faxing you may not be faxing they may not be faxing
Perfect
I may not have faxed you may not have faxed she may not have faxed we may not have faxed you may not have faxed they may not have faxed
V-ing perfect
I may not have been faxing you may not have been faxing she may not have been faxing we may not have been faxing you may not have been faxing they may not have been faxing
Interrogative form
Simple form
may I fax? may you fax? may she fax? may we fax? may you fax? may they fax?
V-ing form
may I be faxing? may you be faxing? may she be faxing? may we be faxing? may you be faxing? may they be faxing?
Perfect
may I have faxed? may you have faxed? may she have faxed? may we have faxed? may you have faxed? may they have faxed?
V-ing perfect
may I have been faxing? may you have been faxing? may she have been faxing? may we have been faxing? may you have been faxing? may they have been faxing?
Interro-negative form
Simple form
may I not fax? may you not fax? may she not fax? may we not fax? may you not fax? may they not fax?
V-ing form
may I not be faxing? may you not be faxing? may she not be faxing? may we not be faxing? may you not be faxing? may they not be faxing?
Perfect
may I not have faxed? may you not have faxed? may she not have faxed? may we not have faxed? may you not have faxed? may they not have faxed?
V-ing perfect
may I not have been faxing? may you not have been faxing? may she not have been faxing? may we not have been faxing? may you not have been faxing? may they not have been faxing?