English verb conjugation COULD ENGINEER

Regular verb: engineer - engineered - engineered

Affirmation

Simple form

I could engineer
you could engineer
he could engineer
we could engineer
you could engineer
they could engineer

V-ing form

I could be engineering
you could be engineering
he could be engineering
we could be engineering
you could be engineering
they could be engineering

Perfect

I could have engineered
you could have engineered
he could have engineered
we could have engineered
you could have engineered
they could have engineered

V-ing perfect

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

Negation

Simple form

I could not engineer
you could not engineer
he could not engineer
we could not engineer
you could not engineer
they could not engineer

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I engineer?
could you engineer?
could he engineer?
could we engineer?
could you engineer?
could they engineer?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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