English verb conjugation
CAN ACHIEVE

Regular verb: achieve - achieved - achieved

Affirmation

Simple form	V-ing form
I can achieve you can achieve he can achieve we can achieve you can achieve they can achieve	I can be achieving you can be achieving he can be achieving we can be achieving you can be achieving they can be achieving
Perfect	V-ing perfect
I can have achieved you can have achieved he can have achieved we can have achieved you can have achieved they can have achieved	I can have been achieving you can have been achieving he can have been achieving we can have been achieving you can have been achieving they can have been achieving

Negation

Simple form	V-ing form
I cannot achieve you cannot achieve he cannot achieve we cannot achieve you cannot achieve they cannot achieve	I cannot be achieving you cannot be achieving he cannot be achieving we cannot be achieving you cannot be achieving they cannot be achieving
Perfect	V-ing perfect
I cannot have achieved you cannot have achieved he cannot have achieved we cannot have achieved you cannot have achieved they cannot have achieved	I cannot have been achieving you cannot have been achieving he cannot have been achieving we cannot have been achieving you cannot have been achieving they cannot have been achieving

Interrogative form

Simple form	V-ing form
can I achieve? can you achieve? can he achieve? can we achieve? can you achieve? can they achieve?	can I be achieving? can you be achieving? can he be achieving? can we be achieving? can you be achieving? can they be achieving?
Perfect	V-ing perfect
can I have achieved? can you have achieved? can he have achieved? can we have achieved? can you have achieved? can they have achieved?	can I have been achieving? can you have been achieving? can he have been achieving? can we have been achieving? can you have been achieving? can they have been achieving?

Interro-negative form

Simple form	V-ing form
can I not achieve? can you not achieve? can he not achieve? can we not achieve? can you not achieve? can they not achieve?	can I not be achieving? can you not be achieving? can he not be achieving? can we not be achieving? can you not be achieving? can they not be achieving?
Perfect	V-ing perfect
can I not have achieved? can you not have achieved? can he not have achieved? can we not have achieved? can you not have achieved? can they not have achieved?	can I not have been achieving? can you not have been achieving? can he not have been achieving? can we not have been achieving? can you not have been achieving? can they not have been achieving?