English verb conjugation COULD GREATEN

Regular verb: greaten - greatened - greatened

Affirmation

Simple form

I could greaten
you could greaten
he could greaten
we could greaten
you could greaten
they could greaten

V-ing form

I could be greatening
you could be greatening
he could be greatening
we could be greatening
you could be greatening
they could be greatening

Perfect

I could have greatened
you could have greatened
he could have greatened
we could have greatened
you could have greatened
they could have greatened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I greaten?
could you greaten?
could he greaten?
could we greaten?
could you greaten?
could they greaten?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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