English verb conjugation COULD SURVEIL

Regular verb: surveil - surveiled - surveiled

Affirmation

Simple form

I could surveil
you could surveil
he could surveil
we could surveil
you could surveil
they could surveil

V-ing form

I could be surveiling
you could be surveiling
he could be surveiling
we could be surveiling
you could be surveiling
they could be surveiling

Perfect

I could have surveiled
you could have surveiled
he could have surveiled
we could have surveiled
you could have surveiled
they could have surveiled

V-ing perfect

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

Negation

Simple form

I could not surveil
you could not surveil
he could not surveil
we could not surveil
you could not surveil
they could not surveil

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I surveil?
could you surveil?
could he surveil?
could we surveil?
could you surveil?
could they surveil?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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