English verb conjugation COULD OVERFISH

Regular verb: overfish - overfished - overfished

Affirmation

Simple form

I could overfish
you could overfish
he could overfish
we could overfish
you could overfish
they could overfish

V-ing form

I could be overfishing
you could be overfishing
he could be overfishing
we could be overfishing
you could be overfishing
they could be overfishing

Perfect

I could have overfished
you could have overfished
he could have overfished
we could have overfished
you could have overfished
they could have overfished

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I overfish?
could you overfish?
could he overfish?
could we overfish?
could you overfish?
could they overfish?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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