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 couldn't frog
you couldn't frog
he couldn't frog
we couldn't frog
you couldn't frog
they couldn't frog

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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