Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may achieve achieve you may achieve achieve she may achieve achieve we may achieve achieve you may achieve achieve they may achieve achieve
V-ing form
I may be achieve achieving you may be achieve achieving she may be achieve achieving we may be achieve achieving you may be achieve achieving they may be achieve achieving
Perfect
I may have achieve achieved you may have achieve achieved she may have achieve achieved we may have achieve achieved you may have achieve achieved they may have achieve achieved
V-ing perfect
I may have been achieve achieving you may have been achieve achieving she may have been achieve achieving we may have been achieve achieving you may have been achieve achieving they may have been achieve achieving
Negation
Simple form
I mayn't achieve achieve you mayn't achieve achieve she mayn't achieve achieve we mayn't achieve achieve you mayn't achieve achieve they mayn't achieve achieve
V-ing form
I mayn't be achieve achieving you mayn't be achieve achieving she mayn't be achieve achieving we mayn't be achieve achieving you mayn't be achieve achieving they mayn't be achieve achieving
Perfect
I mayn't have achieve achieved you mayn't have achieve achieved she mayn't have achieve achieved we mayn't have achieve achieved you mayn't have achieve achieved they mayn't have achieve achieved
V-ing perfect
I mayn't have been achieve achieving you mayn't have been achieve achieving she mayn't have been achieve achieving we mayn't have been achieve achieving you mayn't have been achieve achieving they mayn't have been achieve achieving
Interrogative form
Simple form
may I achieve achieve? may you achieve achieve? may she achieve achieve? may we achieve achieve? may you achieve achieve? may they achieve achieve?
V-ing form
may I be achieve achieving? may you be achieve achieving? may she be achieve achieving? may we be achieve achieving? may you be achieve achieving? may they be achieve achieving?
Perfect
may I have achieve achieved? may you have achieve achieved? may she have achieve achieved? may we have achieve achieved? may you have achieve achieved? may they have achieve achieved?
V-ing perfect
may I have been achieve achieving? may you have been achieve achieving? may she have been achieve achieving? may we have been achieve achieving? may you have been achieve achieving? may they have been achieve achieving?
Interro-negative form
Simple form
mayn't I achieve achieve? mayn't you achieve achieve? mayn't she achieve achieve? mayn't we achieve achieve? mayn't you achieve achieve? mayn't they achieve achieve?
V-ing form
mayn't I be achieve achieving? mayn't you be achieve achieving? mayn't she be achieve achieving? mayn't we be achieve achieving? mayn't you be achieve achieving? mayn't they be achieve achieving?
Perfect
mayn't I have achieve achieved? mayn't you have achieve achieved? mayn't she have achieve achieved? mayn't we have achieve achieved? mayn't you have achieve achieved? mayn't they have achieve achieved?
V-ing perfect
mayn't I have been achieve achieving? mayn't you have been achieve achieving? mayn't she have been achieve achieving? mayn't we have been achieve achieving? mayn't you have been achieve achieving? mayn't they have been achieve achieving?