English verb conjugation COULD ENGINEER

Regular verb: engineer - engineered - engineered

Affirmation

Simple form

I could engineer
you could engineer
she could engineer
we could engineer
you could engineer
they could engineer

V-ing form

I could be engineering
you could be engineering
she could be engineering
we could be engineering
you could be engineering
they could be engineering

Perfect

I could have engineered
you could have engineered
she 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
she could have been engineering
we could have been engineering
you could have been engineering
they could have been engineering

Negation

Simple form

I couldn't engineer
you couldn't engineer
she couldn't engineer
we couldn't engineer
you couldn't engineer
they couldn't engineer

V-ing form

I couldn't be engineering
you couldn't be engineering
she couldn't be engineering
we couldn't be engineering
you couldn't be engineering
they couldn't be engineering

Perfect

I couldn't have engineered
you couldn't have engineered
she couldn't have engineered
we couldn't have engineered
you couldn't have engineered
they couldn't have engineered

V-ing perfect

I couldn't have been engineering
you couldn't have been engineering
she couldn't have been engineering
we couldn't have been engineering
you couldn't have been engineering
they couldn't have been engineering

Interrogative form

Simple form

could I engineer?
could you engineer?
could she engineer?
could we engineer?
could you engineer?
could they engineer?

V-ing form

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

Perfect

could I have engineered?
could you have engineered?
could she 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 she have been engineering?
could we have been engineering?
could you have been engineering?
could they have been engineering?

Interro-negative form

Simple form

couldn't I engineer?
couldn't you engineer?
couldn't she engineer?
couldn't we engineer?
couldn't you engineer?
couldn't they engineer?

V-ing form

couldn't I be engineering?
couldn't you be engineering?
couldn't she be engineering?
couldn't we be engineering?
couldn't you be engineering?
couldn't they be engineering?

Perfect

couldn't I have engineered?
couldn't you have engineered?
couldn't she have engineered?
couldn't we have engineered?
couldn't you have engineered?
couldn't they have engineered?

V-ing perfect

couldn't I have been engineering?
couldn't you have been engineering?
couldn't she have been engineering?
couldn't we have been engineering?
couldn't you have been engineering?
couldn't they have been engineering?

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