English verb conjugation
CAN OK

Regular verb: ok - oked - oked

Affirmation

Simple form	V-ing form
I can ok you can ok he can ok we can ok you can ok they can ok	I can be oking you can be oking he can be oking we can be oking you can be oking they can be oking
Perfect	V-ing perfect
I can have oked you can have oked he can have oked we can have oked you can have oked they can have oked	I can have been oking you can have been oking he can have been oking we can have been oking you can have been oking they can have been oking

Negation

Simple form	V-ing form
I can't ok you can't ok he can't ok we can't ok you can't ok they can't ok	I can't be oking you can't be oking he can't be oking we can't be oking you can't be oking they can't be oking
Perfect	V-ing perfect
I can't have oked you can't have oked he can't have oked we can't have oked you can't have oked they can't have oked	I can't have been oking you can't have been oking he can't have been oking we can't have been oking you can't have been oking they can't have been oking

Interrogative form

Simple form	V-ing form
can I ok? can you ok? can he ok? can we ok? can you ok? can they ok?	can I be oking? can you be oking? can he be oking? can we be oking? can you be oking? can they be oking?
Perfect	V-ing perfect
can I have oked? can you have oked? can he have oked? can we have oked? can you have oked? can they have oked?	can I have been oking? can you have been oking? can he have been oking? can we have been oking? can you have been oking? can they have been oking?

Interro-negative form

Simple form	V-ing form
can't I ok? can't you ok? can't he ok? can't we ok? can't you ok? can't they ok?	can't I be oking? can't you be oking? can't he be oking? can't we be oking? can't you be oking? can't they be oking?
Perfect	V-ing perfect
can't I have oked? can't you have oked? can't he have oked? can't we have oked? can't you have oked? can't they have oked?	can't I have been oking? can't you have been oking? can't he have been oking? can't we have been oking? can't you have been oking? can't they have been oking?