I may testify you may testify she may testify we may testify you may testify they may testify
V-ing form
I may be testifying you may be testifying she may be testifying we may be testifying you may be testifying they may be testifying
Perfect
I may have testified you may have testified she may have testified we may have testified you may have testified they may have testified
V-ing perfect
I may have been testifying you may have been testifying she may have been testifying we may have been testifying you may have been testifying they may have been testifying
Negation
Simple form
I mayn't testify you mayn't testify she mayn't testify we mayn't testify you mayn't testify they mayn't testify
V-ing form
I mayn't be testifying you mayn't be testifying she mayn't be testifying we mayn't be testifying you mayn't be testifying they mayn't be testifying
Perfect
I mayn't have testified you mayn't have testified she mayn't have testified we mayn't have testified you mayn't have testified they mayn't have testified
V-ing perfect
I mayn't have been testifying you mayn't have been testifying she mayn't have been testifying we mayn't have been testifying you mayn't have been testifying they mayn't have been testifying
Interrogative form
Simple form
may I testify? may you testify? may she testify? may we testify? may you testify? may they testify?
V-ing form
may I be testifying? may you be testifying? may she be testifying? may we be testifying? may you be testifying? may they be testifying?
Perfect
may I have testified? may you have testified? may she have testified? may we have testified? may you have testified? may they have testified?
V-ing perfect
may I have been testifying? may you have been testifying? may she have been testifying? may we have been testifying? may you have been testifying? may they have been testifying?
Interro-negative form
Simple form
mayn't I testify? mayn't you testify? mayn't she testify? mayn't we testify? mayn't you testify? mayn't they testify?
V-ing form
mayn't I be testifying? mayn't you be testifying? mayn't she be testifying? mayn't we be testifying? mayn't you be testifying? mayn't they be testifying?
Perfect
mayn't I have testified? mayn't you have testified? mayn't she have testified? mayn't we have testified? mayn't you have testified? mayn't they have testified?
V-ing perfect
mayn't I have been testifying? mayn't you have been testifying? mayn't she have been testifying? mayn't we have been testifying? mayn't you have been testifying? mayn't they have been testifying?