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 couldn't lumber
you couldn't lumber
he couldn't lumber
we couldn't lumber
you couldn't lumber
they couldn't lumber

V-ing form

I couldn't be lumbering
you couldn't be lumbering
he couldn't be lumbering
we couldn't be lumbering
you couldn't be lumbering
they couldn't be lumbering

Perfect

I couldn't have lumbered
you couldn't have lumbered
he couldn't have lumbered
we couldn't have lumbered
you couldn't have lumbered
they couldn't have lumbered

V-ing perfect

I couldn't have been lumbering
you couldn't have been lumbering
he couldn't have been lumbering
we couldn't have been lumbering
you couldn't have been lumbering
they couldn't 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

couldn't I lumber?
couldn't you lumber?
couldn't he lumber?
couldn't we lumber?
couldn't you lumber?
couldn't they lumber?

V-ing form

couldn't I be lumbering?
couldn't you be lumbering?
couldn't he be lumbering?
couldn't we be lumbering?
couldn't you be lumbering?
couldn't they be lumbering?

Perfect

couldn't I have lumbered?
couldn't you have lumbered?
couldn't he have lumbered?
couldn't we have lumbered?
couldn't you have lumbered?
couldn't they have lumbered?

V-ing perfect

couldn't I have been lumbering?
couldn't you have been lumbering?
couldn't he have been lumbering?
couldn't we have been lumbering?
couldn't you have been lumbering?
couldn't they have been lumbering?

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