English verb conjugation COULD FROG

Regular verb: frog - froged - froged

Affirmation

Simple form

I could frog
you could frog
he could frog
we could frog
you could frog
they could frog

V-ing form

I could be froging
you could be froging
he could be froging
we could be froging
you could be froging
they could be froging

Perfect

I could have froged
you could have froged
he could have froged
we could have froged
you could have froged
they could have froged

V-ing perfect

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

Negation

Simple form

I could not frog
you could not frog
he could not frog
we could not frog
you could not frog
they could not frog

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I frog?
could you frog?
could he frog?
could we frog?
could you frog?
could they frog?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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