male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD EXTRACT
Regular verb: extract - extracted - extracted
Affirmation
Simple form
I could extractyou could extract
she could extract
we could extract
you could extract
they could extract
V-ing form
I could be extractingyou could be extracting
she could be extracting
we could be extracting
you could be extracting
they could be extracting
Perfect
I could have extractedyou could have extracted
she could have extracted
we could have extracted
you could have extracted
they could have extracted
V-ing perfect
I could have been extractingyou could have been extracting
she could have been extracting
we could have been extracting
you could have been extracting
they could have been extracting
Negation
Simple form
I couldn't extractyou couldn't extract
she couldn't extract
we couldn't extract
you couldn't extract
they couldn't extract
V-ing form
I couldn't be extractingyou couldn't be extracting
she couldn't be extracting
we couldn't be extracting
you couldn't be extracting
they couldn't be extracting
Perfect
I couldn't have extractedyou couldn't have extracted
she couldn't have extracted
we couldn't have extracted
you couldn't have extracted
they couldn't have extracted
V-ing perfect
I couldn't have been extractingyou couldn't have been extracting
she couldn't have been extracting
we couldn't have been extracting
you couldn't have been extracting
they couldn't have been extracting
Interrogative form
Simple form
could I extract?could you extract?
could she extract?
could we extract?
could you extract?
could they extract?
V-ing form
could I be extracting?could you be extracting?
could she be extracting?
could we be extracting?
could you be extracting?
could they be extracting?
Perfect
could I have extracted?could you have extracted?
could she have extracted?
could we have extracted?
could you have extracted?
could they have extracted?
V-ing perfect
could I have been extracting?could you have been extracting?
could she have been extracting?
could we have been extracting?
could you have been extracting?
could they have been extracting?
Interro-negative form
Simple form
couldn't I extract?couldn't you extract?
couldn't she extract?
couldn't we extract?
couldn't you extract?
couldn't they extract?
V-ing form
couldn't I be extracting?couldn't you be extracting?
couldn't she be extracting?
couldn't we be extracting?
couldn't you be extracting?
couldn't they be extracting?
Perfect
couldn't I have extracted?couldn't you have extracted?
couldn't she have extracted?
couldn't we have extracted?
couldn't you have extracted?
couldn't they have extracted?
V-ing perfect
couldn't I have been extracting?couldn't you have been extracting?
couldn't she have been extracting?
couldn't we have been extracting?
couldn't you have been extracting?
couldn't they have been extracting?