English verb conjugation COULD SPHERE

Regular verb: sphere - sphered - sphered

Affirmation

Simple form

I could sphere
you could sphere
he could sphere
we could sphere
you could sphere
they could sphere

V-ing form

I could be sphering
you could be sphering
he could be sphering
we could be sphering
you could be sphering
they could be sphering

Perfect

I could have sphered
you could have sphered
he could have sphered
we could have sphered
you could have sphered
they could have sphered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sphere?
could you sphere?
could he sphere?
could we sphere?
could you sphere?
could they sphere?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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