English verb conjugation COULD OCTUPLE

Regular verb: octuple - octupled - octupled

Affirmation

Simple form

I could octuple
you could octuple
he could octuple
we could octuple
you could octuple
they could octuple

V-ing form

I could be octupling
you could be octupling
he could be octupling
we could be octupling
you could be octupling
they could be octupling

Perfect

I could have octupled
you could have octupled
he could have octupled
we could have octupled
you could have octupled
they could have octupled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I octuple?
could you octuple?
could he octuple?
could we octuple?
could you octuple?
could they octuple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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