English verb conjugation COULD STUMP

Regular verb: stump - stumped - stumped

Affirmation

Simple form

I could stump
you could stump
he could stump
we could stump
you could stump
they could stump

V-ing form

I could be stumping
you could be stumping
he could be stumping
we could be stumping
you could be stumping
they could be stumping

Perfect

I could have stumped
you could have stumped
he could have stumped
we could have stumped
you could have stumped
they could have stumped

V-ing perfect

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

Negation

Simple form

I couldn't stump
you couldn't stump
he couldn't stump
we couldn't stump
you couldn't stump
they couldn't stump

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I stump?
could you stump?
could he stump?
could we stump?
could you stump?
could they stump?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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