English verb conjugation COULD GREASE

Regular verb: grease - greased - greased

Affirmation

Simple form

I could grease
you could grease
he could grease
we could grease
you could grease
they could grease

V-ing form

I could be greasing
you could be greasing
he could be greasing
we could be greasing
you could be greasing
they could be greasing

Perfect

I could have greased
you could have greased
he could have greased
we could have greased
you could have greased
they could have greased

V-ing perfect

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

Negation

Simple form

I could not grease
you could not grease
he could not grease
we could not grease
you could not grease
they could not grease

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I grease?
could you grease?
could he grease?
could we grease?
could you grease?
could they grease?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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