English verb conjugation
CAN ENLIGHTEN

Regular verb: enlighten - enlightened - enlightened

Affirmation

Simple form	V-ing form
I can enlighten you can enlighten he can enlighten we can enlighten you can enlighten they can enlighten	I can be enlightening you can be enlightening he can be enlightening we can be enlightening you can be enlightening they can be enlightening
Perfect	V-ing perfect
I can have enlightened you can have enlightened he can have enlightened we can have enlightened you can have enlightened they can have enlightened	I can have been enlightening you can have been enlightening he can have been enlightening we can have been enlightening you can have been enlightening they can have been enlightening

Negation

Simple form	V-ing form
I cannot enlighten you cannot enlighten he cannot enlighten we cannot enlighten you cannot enlighten they cannot enlighten	I cannot be enlightening you cannot be enlightening he cannot be enlightening we cannot be enlightening you cannot be enlightening they cannot be enlightening
Perfect	V-ing perfect
I cannot have enlightened you cannot have enlightened he cannot have enlightened we cannot have enlightened you cannot have enlightened they cannot have enlightened	I cannot have been enlightening you cannot have been enlightening he cannot have been enlightening we cannot have been enlightening you cannot have been enlightening they cannot have been enlightening

Interrogative form

Simple form	V-ing form
can I enlighten? can you enlighten? can he enlighten? can we enlighten? can you enlighten? can they enlighten?	can I be enlightening? can you be enlightening? can he be enlightening? can we be enlightening? can you be enlightening? can they be enlightening?
Perfect	V-ing perfect
can I have enlightened? can you have enlightened? can he have enlightened? can we have enlightened? can you have enlightened? can they have enlightened?	can I have been enlightening? can you have been enlightening? can he have been enlightening? can we have been enlightening? can you have been enlightening? can they have been enlightening?

Interro-negative form

Simple form	V-ing form
can I not enlighten? can you not enlighten? can he not enlighten? can we not enlighten? can you not enlighten? can they not enlighten?	can I not be enlightening? can you not be enlightening? can he not be enlightening? can we not be enlightening? can you not be enlightening? can they not be enlightening?
Perfect	V-ing perfect
can I not have enlightened? can you not have enlightened? can he not have enlightened? can we not have enlightened? can you not have enlightened? can they not have enlightened?	can I not have been enlightening? can you not have been enlightening? can he not have been enlightening? can we not have been enlightening? can you not have been enlightening? can they not have been enlightening?