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 can't pain you can't pain he can't pain we can't pain you can't pain they can't pain	I can't be paining you can't be paining he can't be paining we can't be paining you can't be paining they can't be paining
Perfect	V-ing perfect
I can't have pained you can't have pained he can't have pained we can't have pained you can't have pained they can't have pained	I can't have been paining you can't have been paining he can't have been paining we can't have been paining you can't have been paining they can't 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't I pain? can't you pain? can't he pain? can't we pain? can't you pain? can't they pain?	can't I be paining? can't you be paining? can't he be paining? can't we be paining? can't you be paining? can't they be paining?
Perfect	V-ing perfect
can't I have pained? can't you have pained? can't he have pained? can't we have pained? can't you have pained? can't they have pained?	can't I have been paining? can't you have been paining? can't he have been paining? can't we have been paining? can't you have been paining? can't they have been paining?