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