English verb conjugation COULD ENLIGHTEN

Regular verb: enlighten - enlightened - enlightened

Affirmation

Simple form

I could enlighten
you could enlighten
he could enlighten
we could enlighten
you could enlighten
they could enlighten

V-ing form

I could be enlightening
you could be enlightening
he could be enlightening
we could be enlightening
you could be enlightening
they could be enlightening

Perfect

I could have enlightened
you could have enlightened
he could have enlightened
we could have enlightened
you could have enlightened
they could have enlightened

V-ing perfect

I could have been enlightening
you could have been enlightening
he could have been enlightening
we could have been enlightening
you could have been enlightening
they could have been enlightening

Negation

Simple form

I could not enlighten
you could not enlighten
he could not enlighten
we could not enlighten
you could not enlighten
they could not enlighten

V-ing form

I could not be enlightening
you could not be enlightening
he could not be enlightening
we could not be enlightening
you could not be enlightening
they could not be enlightening

Perfect

I could not have enlightened
you could not have enlightened
he could not have enlightened
we could not have enlightened
you could not have enlightened
they could not have enlightened

V-ing perfect

I could not have been enlightening
you could not have been enlightening
he could not have been enlightening
we could not have been enlightening
you could not have been enlightening
they could not have been enlightening

Interrogative form

Simple form

could I enlighten?
could you enlighten?
could he enlighten?
could we enlighten?
could you enlighten?
could they enlighten?

V-ing form

could I be enlightening?
could you be enlightening?
could he be enlightening?
could we be enlightening?
could you be enlightening?
could they be enlightening?

Perfect

could I have enlightened?
could you have enlightened?
could he have enlightened?
could we have enlightened?
could you have enlightened?
could they have enlightened?

V-ing perfect

could I have been enlightening?
could you have been enlightening?
could he have been enlightening?
could we have been enlightening?
could you have been enlightening?
could they have been enlightening?

Interro-negative form

Simple form

could I not enlighten?
could you not enlighten?
could he not enlighten?
could we not enlighten?
could you not enlighten?
could they not enlighten?

V-ing form

could I not be enlightening?
could you not be enlightening?
could he not be enlightening?
could we not be enlightening?
could you not be enlightening?
could they not be enlightening?

Perfect

could I not have enlightened?
could you not have enlightened?
could he not have enlightened?
could we not have enlightened?
could you not have enlightened?
could they not have enlightened?

V-ing perfect

could I not have been enlightening?
could you not have been enlightening?
could he not have been enlightening?
could we not have been enlightening?
could you not have been enlightening?
could they not have been enlightening?

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