I may achieve you may achieve he may achieve we may achieve you may achieve they may achieve
V-ing form
I may be achieving you may be achieving he may be achieving we may be achieving you may be achieving they may be achieving
Perfect
I may have achieved you may have achieved he may have achieved we may have achieved you may have achieved they may have achieved
V-ing perfect
I may have been achieving you may have been achieving he may have been achieving we may have been achieving you may have been achieving they may have been achieving
Negation
Simple form
I may not achieve you may not achieve he may not achieve we may not achieve you may not achieve they may not achieve
V-ing form
I may not be achieving you may not be achieving he may not be achieving we may not be achieving you may not be achieving they may not be achieving
Perfect
I may not have achieved you may not have achieved he may not have achieved we may not have achieved you may not have achieved they may not have achieved
V-ing perfect
I may not have been achieving you may not have been achieving he may not have been achieving we may not have been achieving you may not have been achieving they may not have been achieving
Interrogative form
Simple form
may I achieve? may you achieve? may he achieve? may we achieve? may you achieve? may they achieve?
V-ing form
may I be achieving? may you be achieving? may he be achieving? may we be achieving? may you be achieving? may they be achieving?
Perfect
may I have achieved? may you have achieved? may he have achieved? may we have achieved? may you have achieved? may they have achieved?
V-ing perfect
may I have been achieving? may you have been achieving? may he have been achieving? may we have been achieving? may you have been achieving? may they have been achieving?
Interro-negative form
Simple form
may I not achieve? may you not achieve? may he not achieve? may we not achieve? may you not achieve? may they not achieve?
V-ing form
may I not be achieving? may you not be achieving? may he not be achieving? may we not be achieving? may you not be achieving? may they not be achieving?
Perfect
may I not have achieved? may you not have achieved? may he not have achieved? may we not have achieved? may you not have achieved? may they not have achieved?
V-ing perfect
may I not have been achieving? may you not have been achieving? may he not have been achieving? may we not have been achieving? may you not have been achieving? may they not have been achieving?