English verb conjugation COULD LUMBER

Regular verb: lumber - lumbered - lumbered

Affirmation

Simple form

I could lumber
you could lumber
he could lumber
we could lumber
you could lumber
they could lumber

V-ing form

I could be lumbering
you could be lumbering
he could be lumbering
we could be lumbering
you could be lumbering
they could be lumbering

Perfect

I could have lumbered
you could have lumbered
he could have lumbered
we could have lumbered
you could have lumbered
they could have lumbered

V-ing perfect

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

Negation

Simple form

I could not lumber
you could not lumber
he could not lumber
we could not lumber
you could not lumber
they could not lumber

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I lumber?
could you lumber?
could he lumber?
could we lumber?
could you lumber?
could they lumber?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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