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