English verb conjugation COULD SURVEY

Regular verb: survey - surveyed - surveyed

Affirmation

Simple form

I could survey
you could survey
she could survey
we could survey
you could survey
they could survey

V-ing form

I could be surveying
you could be surveying
she could be surveying
we could be surveying
you could be surveying
they could be surveying

Perfect

I could have surveyed
you could have surveyed
she 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
she could have been surveying
we could have been surveying
you could have been surveying
they could have been surveying

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I survey?
could you survey?
could she survey?
could we survey?
could you survey?
could they survey?

V-ing form

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

Perfect

could I have surveyed?
could you have surveyed?
could she 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 she have been surveying?
could we have been surveying?
could you have been surveying?
could they have been surveying?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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