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 mayn't callous
you mayn't callous
she mayn't callous
we mayn't callous
you mayn't callous
they mayn't callous 	I mayn't be callousing
you mayn't be callousing
she mayn't be callousing
we mayn't be callousing
you mayn't be callousing
they mayn't be callousing	I mayn't have calloused
you mayn't have calloused
she mayn't have calloused
we mayn't have calloused
you mayn't have calloused
they mayn't have calloused	I mayn't have been callousing
you mayn't have been callousing
she mayn't have been callousing
we mayn't have been callousing
you mayn't have been callousing
they mayn't 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 	
mayn't I callous?
mayn't you callous?
mayn't she callous?
mayn't we callous?
mayn't you callous?
mayn't they callous? 	mayn't I be callousing?
mayn't you be callousing?
mayn't she be callousing?
mayn't we be callousing?
mayn't you be callousing?
mayn't they be callousing? 	mayn't I have calloused?
mayn't you have calloused?
mayn't she have calloused?
mayn't we have calloused?
mayn't you have calloused?
mayn't they have calloused? 	mayn't I have been callousing?
mayn't you have been callousing?
mayn't she have been callousing?
mayn't we have been callousing?
mayn't you have been callousing?
mayn't they have been callousing?