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