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