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 couldn't surveil
you couldn't surveil
he couldn't surveil
we couldn't surveil
you couldn't surveil
they couldn't surveil

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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