English verb conjugation CAN BACKFIRE

Regular verb: backfire - backfired - backfired

Affirmation

Simple form

I can backfire
you can backfire
he can backfire
we can backfire
you can backfire
they can backfire

V-ing form

I can be backfiring
you can be backfiring
he can be backfiring
we can be backfiring
you can be backfiring
they can be backfiring

Perfect

I can have backfired
you can have backfired
he can have backfired
we can have backfired
you can have backfired
they can have backfired

V-ing perfect

I can have been backfiring
you can have been backfiring
he can have been backfiring
we can have been backfiring
you can have been backfiring
they can have been backfiring

Negation

Simple form

I can't backfire
you can't backfire
he can't backfire
we can't backfire
you can't backfire
they can't backfire

V-ing form

I can't be backfiring
you can't be backfiring
he can't be backfiring
we can't be backfiring
you can't be backfiring
they can't be backfiring

Perfect

I can't have backfired
you can't have backfired
he can't have backfired
we can't have backfired
you can't have backfired
they can't have backfired

V-ing perfect

I can't have been backfiring
you can't have been backfiring
he can't have been backfiring
we can't have been backfiring
you can't have been backfiring
they can't have been backfiring

Interrogative form

Simple form

can I backfire?
can you backfire?
can he backfire?
can we backfire?
can you backfire?
can they backfire?

V-ing form

can I be backfiring?
can you be backfiring?
can he be backfiring?
can we be backfiring?
can you be backfiring?
can they be backfiring?

Perfect

can I have backfired?
can you have backfired?
can he have backfired?
can we have backfired?
can you have backfired?
can they have backfired?

V-ing perfect

can I have been backfiring?
can you have been backfiring?
can he have been backfiring?
can we have been backfiring?
can you have been backfiring?
can they have been backfiring?

Interro-negative form

Simple form

can't I backfire?
can't you backfire?
can't he backfire?
can't we backfire?
can't you backfire?
can't they backfire?

V-ing form

can't I be backfiring?
can't you be backfiring?
can't he be backfiring?
can't we be backfiring?
can't you be backfiring?
can't they be backfiring?

Perfect

can't I have backfired?
can't you have backfired?
can't he have backfired?
can't we have backfired?
can't you have backfired?
can't they have backfired?

V-ing perfect

can't I have been backfiring?
can't you have been backfiring?
can't he have been backfiring?
can't we have been backfiring?
can't you have been backfiring?
can't they have been backfiring?

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