may purify
Regular verb: purify - purified- purified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may purify
you may purify
she may purify
we may purify
you may purify
they may purify 	I may be purifying
you may be purifying
she may be purifying
we may be purifying
you may be purifying
they may be purifying	I may have purified
you may have purified
she may have purified
we may have purified
you may have purified
they may have purified	I may have been purifying
you may have been purifying
she may have been purifying
we may have been purifying
you may have been purifying
they may have been purifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't purify
you mayn't purify
she mayn't purify
we mayn't purify
you mayn't purify
they mayn't purify 	I mayn't be purifying
you mayn't be purifying
she mayn't be purifying
we mayn't be purifying
you mayn't be purifying
they mayn't be purifying	I mayn't have purified
you mayn't have purified
she mayn't have purified
we mayn't have purified
you mayn't have purified
they mayn't have purified	I mayn't have been purifying
you mayn't have been purifying
she mayn't have been purifying
we mayn't have been purifying
you mayn't have been purifying
they mayn't have been purifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I purify?
may you purify?
may she purify?
may we purify?
may you purify?
may they purify? 	may I be purifying?
may you be purifying?
may she be purifying?
may we be purifying?
may you be purifying?
may they be purifying? 	may I have purified?
may you have purified?
may she have purified?
may we have purified?
may you have purified?
may they have purified? 	may I have been purifying?
may you have been purifying?
may she have been purifying?
may we have been purifying?
may you have been purifying?
may they have been purifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I purify?
mayn't you purify?
mayn't she purify?
mayn't we purify?
mayn't you purify?
mayn't they purify? 	mayn't I be purifying?
mayn't you be purifying?
mayn't she be purifying?
mayn't we be purifying?
mayn't you be purifying?
mayn't they be purifying? 	mayn't I have purified?
mayn't you have purified?
mayn't she have purified?
mayn't we have purified?
mayn't you have purified?
mayn't they have purified? 	mayn't I have been purifying?
mayn't you have been purifying?
mayn't she have been purifying?
mayn't we have been purifying?
mayn't you have been purifying?
mayn't they have been purifying?