I may fortify you may fortify he may fortify we may fortify you may fortify they may fortify
V-ing form
I may be fortifying you may be fortifying he may be fortifying we may be fortifying you may be fortifying they may be fortifying
Perfect
I may have fortified you may have fortified he may have fortified we may have fortified you may have fortified they may have fortified
V-ing perfect
I may have been fortifying you may have been fortifying he may have been fortifying we may have been fortifying you may have been fortifying they may have been fortifying
Negation
Simple form
I mayn't fortify you mayn't fortify he mayn't fortify we mayn't fortify you mayn't fortify they mayn't fortify
V-ing form
I mayn't be fortifying you mayn't be fortifying he mayn't be fortifying we mayn't be fortifying you mayn't be fortifying they mayn't be fortifying
Perfect
I mayn't have fortified you mayn't have fortified he mayn't have fortified we mayn't have fortified you mayn't have fortified they mayn't have fortified
V-ing perfect
I mayn't have been fortifying you mayn't have been fortifying he mayn't have been fortifying we mayn't have been fortifying you mayn't have been fortifying they mayn't have been fortifying
Interrogative form
Simple form
may I fortify? may you fortify? may he fortify? may we fortify? may you fortify? may they fortify?
V-ing form
may I be fortifying? may you be fortifying? may he be fortifying? may we be fortifying? may you be fortifying? may they be fortifying?
Perfect
may I have fortified? may you have fortified? may he have fortified? may we have fortified? may you have fortified? may they have fortified?
V-ing perfect
may I have been fortifying? may you have been fortifying? may he have been fortifying? may we have been fortifying? may you have been fortifying? may they have been fortifying?
Interro-negative form
Simple form
mayn't I fortify? mayn't you fortify? mayn't he fortify? mayn't we fortify? mayn't you fortify? mayn't they fortify?
V-ing form
mayn't I be fortifying? mayn't you be fortifying? mayn't he be fortifying? mayn't we be fortifying? mayn't you be fortifying? mayn't they be fortifying?
Perfect
mayn't I have fortified? mayn't you have fortified? mayn't he have fortified? mayn't we have fortified? mayn't you have fortified? mayn't they have fortified?
V-ing perfect
mayn't I have been fortifying? mayn't you have been fortifying? mayn't he have been fortifying? mayn't we have been fortifying? mayn't you have been fortifying? mayn't they have been fortifying?