English verb conjugation COULD CRUMPLE

Regular verb: crumple - crumpled - crumpled

Affirmation

Simple form

I could crumple
you could crumple
she could crumple
we could crumple
you could crumple
they could crumple

V-ing form

I could be crumpling
you could be crumpling
she could be crumpling
we could be crumpling
you could be crumpling
they could be crumpling

Perfect

I could have crumpled
you could have crumpled
she could have crumpled
we could have crumpled
you could have crumpled
they could have crumpled

V-ing perfect

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

Negation

Simple form

I couldn't crumple
you couldn't crumple
she couldn't crumple
we couldn't crumple
you couldn't crumple
they couldn't crumple

V-ing form

I couldn't be crumpling
you couldn't be crumpling
she couldn't be crumpling
we couldn't be crumpling
you couldn't be crumpling
they couldn't be crumpling

Perfect

I couldn't have crumpled
you couldn't have crumpled
she couldn't have crumpled
we couldn't have crumpled
you couldn't have crumpled
they couldn't have crumpled

V-ing perfect

I couldn't have been crumpling
you couldn't have been crumpling
she couldn't have been crumpling
we couldn't have been crumpling
you couldn't have been crumpling
they couldn't have been crumpling

Interrogative form

Simple form

could I crumple?
could you crumple?
could she crumple?
could we crumple?
could you crumple?
could they crumple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I crumple?
couldn't you crumple?
couldn't she crumple?
couldn't we crumple?
couldn't you crumple?
couldn't they crumple?

V-ing form

couldn't I be crumpling?
couldn't you be crumpling?
couldn't she be crumpling?
couldn't we be crumpling?
couldn't you be crumpling?
couldn't they be crumpling?

Perfect

couldn't I have crumpled?
couldn't you have crumpled?
couldn't she have crumpled?
couldn't we have crumpled?
couldn't you have crumpled?
couldn't they have crumpled?

V-ing perfect

couldn't I have been crumpling?
couldn't you have been crumpling?
couldn't she have been crumpling?
couldn't we have been crumpling?
couldn't you have been crumpling?
couldn't they have been crumpling?

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