English verb conjugation COULD SURTAX

Regular verb: surtax - surtaxed - surtaxed

Affirmation

Simple form

I could surtax
you could surtax
he could surtax
we could surtax
you could surtax
they could surtax

V-ing form

I could be surtaxing
you could be surtaxing
he could be surtaxing
we could be surtaxing
you could be surtaxing
they could be surtaxing

Perfect

I could have surtaxed
you could have surtaxed
he could have surtaxed
we could have surtaxed
you could have surtaxed
they could have surtaxed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I surtax?
could you surtax?
could he surtax?
could we surtax?
could you surtax?
could they surtax?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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