English verb conjugation COULD PRODUCE

Regular verb: produce - produced - produced

Affirmation

Simple form

I could produce
you could produce
he could produce
we could produce
you could produce
they could produce

V-ing form

I could be producing
you could be producing
he could be producing
we could be producing
you could be producing
they could be producing

Perfect

I could have produced
you could have produced
he could have produced
we could have produced
you could have produced
they could have produced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I produce?
could you produce?
could he produce?
could we produce?
could you produce?
could they produce?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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