I may callus you may callus she may callus we may callus you may callus they may callus
V-ing form
I may be callusing you may be callusing she may be callusing we may be callusing you may be callusing they may be callusing
Perfect
I may have callused you may have callused she may have callused we may have callused you may have callused they may have callused
V-ing perfect
I may have been callusing you may have been callusing she may have been callusing we may have been callusing you may have been callusing they may have been callusing
Negation
Simple form
I may not callus you may not callus she may not callus we may not callus you may not callus they may not callus
V-ing form
I may not be callusing you may not be callusing she may not be callusing we may not be callusing you may not be callusing they may not be callusing
Perfect
I may not have callused you may not have callused she may not have callused we may not have callused you may not have callused they may not have callused
V-ing perfect
I may not have been callusing you may not have been callusing she may not have been callusing we may not have been callusing you may not have been callusing they may not have been callusing
Interrogative form
Simple form
may I callus? may you callus? may she callus? may we callus? may you callus? may they callus?
V-ing form
may I be callusing? may you be callusing? may she be callusing? may we be callusing? may you be callusing? may they be callusing?
Perfect
may I have callused? may you have callused? may she have callused? may we have callused? may you have callused? may they have callused?
V-ing perfect
may I have been callusing? may you have been callusing? may she have been callusing? may we have been callusing? may you have been callusing? may they have been callusing?
Interro-negative form
Simple form
may I not callus? may you not callus? may she not callus? may we not callus? may you not callus? may they not callus?
V-ing form
may I not be callusing? may you not be callusing? may she not be callusing? may we not be callusing? may you not be callusing? may they not be callusing?
Perfect
may I not have callused? may you not have callused? may she not have callused? may we not have callused? may you not have callused? may they not have callused?
V-ing perfect
may I not have been callusing? may you not have been callusing? may she not have been callusing? may we not have been callusing? may you not have been callusing? may they not have been callusing?