English verb conjugation COULD PROLONGATE

Regular verb: prolongate - prolongated - prolongated

Affirmation

Simple form

I could prolongate
you could prolongate
he could prolongate
we could prolongate
you could prolongate
they could prolongate

V-ing form

I could be prolongating
you could be prolongating
he could be prolongating
we could be prolongating
you could be prolongating
they could be prolongating

Perfect

I could have prolongated
you could have prolongated
he could have prolongated
we could have prolongated
you could have prolongated
they could have prolongated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prolongate?
could you prolongate?
could he prolongate?
could we prolongate?
could you prolongate?
could they prolongate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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