English verb conjugation COULD BACKFIRE

Regular verb: backfire - backfired - backfired

Affirmation

Simple form

I could backfire
you could backfire
she could backfire
we could backfire
you could backfire
they could backfire

V-ing form

I could be backfiring
you could be backfiring
she could be backfiring
we could be backfiring
you could be backfiring
they could be backfiring

Perfect

I could have backfired
you could have backfired
she could have backfired
we could have backfired
you could have backfired
they could have backfired

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I backfire?
could you backfire?
could she backfire?
could we backfire?
could you backfire?
could they backfire?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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