English verb conjugation COULD SURVEY

Regular verb: survey - surveyed - surveyed

Affirmation

Simple form

I could survey
you could survey
he could survey
we could survey
you could survey
they could survey

V-ing form

I could be surveying
you could be surveying
he could be surveying
we could be surveying
you could be surveying
they could be surveying

Perfect

I could have surveyed
you could have surveyed
he could have surveyed
we could have surveyed
you could have surveyed
they could have surveyed

V-ing perfect

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

Negation

Simple form

I could not survey
you could not survey
he could not survey
we could not survey
you could not survey
they could not survey

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I survey?
could you survey?
could he survey?
could we survey?
could you survey?
could they survey?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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