may ferment
Regular verb: ferment - fermented- fermented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may ferment
you may ferment
she may ferment
we may ferment
you may ferment
they may ferment 	I may be fermenting
you may be fermenting
she may be fermenting
we may be fermenting
you may be fermenting
they may be fermenting	I may have fermented
you may have fermented
she may have fermented
we may have fermented
you may have fermented
they may have fermented	I may have been fermenting
you may have been fermenting
she may have been fermenting
we may have been fermenting
you may have been fermenting
they may have been fermenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't ferment
you mayn't ferment
she mayn't ferment
we mayn't ferment
you mayn't ferment
they mayn't ferment 	I mayn't be fermenting
you mayn't be fermenting
she mayn't be fermenting
we mayn't be fermenting
you mayn't be fermenting
they mayn't be fermenting	I mayn't have fermented
you mayn't have fermented
she mayn't have fermented
we mayn't have fermented
you mayn't have fermented
they mayn't have fermented	I mayn't have been fermenting
you mayn't have been fermenting
she mayn't have been fermenting
we mayn't have been fermenting
you mayn't have been fermenting
they mayn't have been fermenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I ferment?
may you ferment?
may she ferment?
may we ferment?
may you ferment?
may they ferment? 	may I be fermenting?
may you be fermenting?
may she be fermenting?
may we be fermenting?
may you be fermenting?
may they be fermenting? 	may I have fermented?
may you have fermented?
may she have fermented?
may we have fermented?
may you have fermented?
may they have fermented? 	may I have been fermenting?
may you have been fermenting?
may she have been fermenting?
may we have been fermenting?
may you have been fermenting?
may they have been fermenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I ferment?
mayn't you ferment?
mayn't she ferment?
mayn't we ferment?
mayn't you ferment?
mayn't they ferment? 	mayn't I be fermenting?
mayn't you be fermenting?
mayn't she be fermenting?
mayn't we be fermenting?
mayn't you be fermenting?
mayn't they be fermenting? 	mayn't I have fermented?
mayn't you have fermented?
mayn't she have fermented?
mayn't we have fermented?
mayn't you have fermented?
mayn't they have fermented? 	mayn't I have been fermenting?
mayn't you have been fermenting?
mayn't she have been fermenting?
mayn't we have been fermenting?
mayn't you have been fermenting?
mayn't they have been fermenting?