English verb conjugation
CAN PAIN

Regular verb: pain - pained - pained

Affirmation

Simple form	V-ing form
I can pain you can pain he can pain we can pain you can pain they can pain	I can be paining you can be paining he can be paining we can be paining you can be paining they can be paining
Perfect	V-ing perfect
I can have pained you can have pained he can have pained we can have pained you can have pained they can have pained	I can have been paining you can have been paining he can have been paining we can have been paining you can have been paining they can have been paining

Negation

Simple form	V-ing form
I cannot pain you cannot pain he cannot pain we cannot pain you cannot pain they cannot pain	I cannot be paining you cannot be paining he cannot be paining we cannot be paining you cannot be paining they cannot be paining
Perfect	V-ing perfect
I cannot have pained you cannot have pained he cannot have pained we cannot have pained you cannot have pained they cannot have pained	I cannot have been paining you cannot have been paining he cannot have been paining we cannot have been paining you cannot have been paining they cannot have been paining

Interrogative form

Simple form	V-ing form
can I pain? can you pain? can he pain? can we pain? can you pain? can they pain?	can I be paining? can you be paining? can he be paining? can we be paining? can you be paining? can they be paining?
Perfect	V-ing perfect
can I have pained? can you have pained? can he have pained? can we have pained? can you have pained? can they have pained?	can I have been paining? can you have been paining? can he have been paining? can we have been paining? can you have been paining? can they have been paining?

Interro-negative form

Simple form	V-ing form
can I not pain? can you not pain? can he not pain? can we not pain? can you not pain? can they not pain?	can I not be paining? can you not be paining? can he not be paining? can we not be paining? can you not be paining? can they not be paining?
Perfect	V-ing perfect
can I not have pained? can you not have pained? can he not have pained? can we not have pained? can you not have pained? can they not have pained?	can I not have been paining? can you not have been paining? can he not have been paining? can we not have been paining? can you not have been paining? can they not have been paining?