English verb conjugation COULD REGRESS

Regular verb: regress - regressed - regressed

Affirmation

Simple form

I could regress
you could regress
she could regress
we could regress
you could regress
they could regress

V-ing form

I could be regressing
you could be regressing
she could be regressing
we could be regressing
you could be regressing
they could be regressing

Perfect

I could have regressed
you could have regressed
she could have regressed
we could have regressed
you could have regressed
they could have regressed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I regress?
could you regress?
could she regress?
could we regress?
could you regress?
could they regress?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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