may subtract
Regular verb: subtract - subtracted- subtracted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may subtract
you may subtract
she may subtract
we may subtract
you may subtract
they may subtract 	I may be subtracting
you may be subtracting
she may be subtracting
we may be subtracting
you may be subtracting
they may be subtracting	I may have subtracted
you may have subtracted
she may have subtracted
we may have subtracted
you may have subtracted
they may have subtracted	I may have been subtracting
you may have been subtracting
she may have been subtracting
we may have been subtracting
you may have been subtracting
they may have been subtracting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not subtract
you may not subtract
she may not subtract
we may not subtract
you may not subtract
they may not subtract 	I may not be subtracting
you may not be subtracting
she may not be subtracting
we may not be subtracting
you may not be subtracting
they may not be subtracting	I may not have subtracted
you may not have subtracted
she may not have subtracted
we may not have subtracted
you may not have subtracted
they may not have subtracted	I may not have been subtracting
you may not have been subtracting
she may not have been subtracting
we may not have been subtracting
you may not have been subtracting
they may not have been subtracting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I subtract?
may you subtract?
may she subtract?
may we subtract?
may you subtract?
may they subtract? 	may I be subtracting?
may you be subtracting?
may she be subtracting?
may we be subtracting?
may you be subtracting?
may they be subtracting? 	may I have subtracted?
may you have subtracted?
may she have subtracted?
may we have subtracted?
may you have subtracted?
may they have subtracted? 	may I have been subtracting?
may you have been subtracting?
may she have been subtracting?
may we have been subtracting?
may you have been subtracting?
may they have been subtracting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not subtract?
may you not subtract?
may she not subtract?
may we not subtract?
may you not subtract?
may they not subtract? 	may I not be subtracting?
may you not be subtracting?
may she not be subtracting?
may we not be subtracting?
may you not be subtracting?
may they not be subtracting? 	may I not have subtracted?
may you not have subtracted?
may she not have subtracted?
may we not have subtracted?
may you not have subtracted?
may they not have subtracted? 	may I not have been subtracting?
may you not have been subtracting?
may she not have been subtracting?
may we not have been subtracting?
may you not have been subtracting?
may they not have been subtracting?