may callous
Regular verb: callous - calloused- calloused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may callous
you may callous
she may callous
we may callous
you may callous
they may callous 	I may be callousing
you may be callousing
she may be callousing
we may be callousing
you may be callousing
they may be callousing	I may have calloused
you may have calloused
she may have calloused
we may have calloused
you may have calloused
they may have calloused	I may have been callousing
you may have been callousing
she may have been callousing
we may have been callousing
you may have been callousing
they may have been callousing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not callous
you may not callous
she may not callous
we may not callous
you may not callous
they may not callous 	I may not be callousing
you may not be callousing
she may not be callousing
we may not be callousing
you may not be callousing
they may not be callousing	I may not have calloused
you may not have calloused
she may not have calloused
we may not have calloused
you may not have calloused
they may not have calloused	I may not have been callousing
you may not have been callousing
she may not have been callousing
we may not have been callousing
you may not have been callousing
they may not have been callousing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I callous?
may you callous?
may she callous?
may we callous?
may you callous?
may they callous? 	may I be callousing?
may you be callousing?
may she be callousing?
may we be callousing?
may you be callousing?
may they be callousing? 	may I have calloused?
may you have calloused?
may she have calloused?
may we have calloused?
may you have calloused?
may they have calloused? 	may I have been callousing?
may you have been callousing?
may she have been callousing?
may we have been callousing?
may you have been callousing?
may they have been callousing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not callous?
may you not callous?
may she not callous?
may we not callous?
may you not callous?
may they not callous? 	may I not be callousing?
may you not be callousing?
may she not be callousing?
may we not be callousing?
may you not be callousing?
may they not be callousing? 	may I not have calloused?
may you not have calloused?
may she not have calloused?
may we not have calloused?
may you not have calloused?
may they not have calloused? 	may I not have been callousing?
may you not have been callousing?
may she not have been callousing?
may we not have been callousing?
may you not have been callousing?
may they not have been callousing?