English verb conjugation COULD EXPOUND

Regular verb: expound - expounded - expounded

Affirmation

Simple form

I could expound
you could expound
he could expound
we could expound
you could expound
they could expound

V-ing form

I could be expounding
you could be expounding
he could be expounding
we could be expounding
you could be expounding
they could be expounding

Perfect

I could have expounded
you could have expounded
he could have expounded
we could have expounded
you could have expounded
they could have expounded

V-ing perfect

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

Negation

Simple form

I could not expound
you could not expound
he could not expound
we could not expound
you could not expound
they could not expound

V-ing form

I could not be expounding
you could not be expounding
he could not be expounding
we could not be expounding
you could not be expounding
they could not be expounding

Perfect

I could not have expounded
you could not have expounded
he could not have expounded
we could not have expounded
you could not have expounded
they could not have expounded

V-ing perfect

I could not have been expounding
you could not have been expounding
he could not have been expounding
we could not have been expounding
you could not have been expounding
they could not have been expounding

Interrogative form

Simple form

could I expound?
could you expound?
could he expound?
could we expound?
could you expound?
could they expound?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not expound?
could you not expound?
could he not expound?
could we not expound?
could you not expound?
could they not expound?

V-ing form

could I not be expounding?
could you not be expounding?
could he not be expounding?
could we not be expounding?
could you not be expounding?
could they not be expounding?

Perfect

could I not have expounded?
could you not have expounded?
could he not have expounded?
could we not have expounded?
could you not have expounded?
could they not have expounded?

V-ing perfect

could I not have been expounding?
could you not have been expounding?
could he not have been expounding?
could we not have been expounding?
could you not have been expounding?
could they not have been expounding?

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