English verb conjugation COULD GREEN

Regular verb: green - greened - greened

Affirmation

Simple form

I could green
you could green
she could green
we could green
you could green
they could green

V-ing form

I could be greening
you could be greening
she could be greening
we could be greening
you could be greening
they could be greening

Perfect

I could have greened
you could have greened
she could have greened
we could have greened
you could have greened
they could have greened

V-ing perfect

I could have been greening
you could have been greening
she could have been greening
we could have been greening
you could have been greening
they could have been greening

Negation

Simple form

I could not green
you could not green
she could not green
we could not green
you could not green
they could not green

V-ing form

I could not be greening
you could not be greening
she could not be greening
we could not be greening
you could not be greening
they could not be greening

Perfect

I could not have greened
you could not have greened
she could not have greened
we could not have greened
you could not have greened
they could not have greened

V-ing perfect

I could not have been greening
you could not have been greening
she could not have been greening
we could not have been greening
you could not have been greening
they could not have been greening

Interrogative form

Simple form

could I green?
could you green?
could she green?
could we green?
could you green?
could they green?

V-ing form

could I be greening?
could you be greening?
could she be greening?
could we be greening?
could you be greening?
could they be greening?

Perfect

could I have greened?
could you have greened?
could she have greened?
could we have greened?
could you have greened?
could they have greened?

V-ing perfect

could I have been greening?
could you have been greening?
could she have been greening?
could we have been greening?
could you have been greening?
could they have been greening?

Interro-negative form

Simple form

could I not green?
could you not green?
could she not green?
could we not green?
could you not green?
could they not green?

V-ing form

could I not be greening?
could you not be greening?
could she not be greening?
could we not be greening?
could you not be greening?
could they not be greening?

Perfect

could I not have greened?
could you not have greened?
could she not have greened?
could we not have greened?
could you not have greened?
could they not have greened?

V-ing perfect

could I not have been greening?
could you not have been greening?
could she not have been greening?
could we not have been greening?
could you not have been greening?
could they not have been greening?

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