male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD TEST
Regular verb: test - tested - tested
Affirmation
Simple form
I could testyou could test
she could test
we could test
you could test
they could test
V-ing form
I could be testingyou could be testing
she could be testing
we could be testing
you could be testing
they could be testing
Perfect
I could have testedyou could have tested
she could have tested
we could have tested
you could have tested
they could have tested
V-ing perfect
I could have been testingyou could have been testing
she could have been testing
we could have been testing
you could have been testing
they could have been testing
Negation
Simple form
I couldn't testyou couldn't test
she couldn't test
we couldn't test
you couldn't test
they couldn't test
V-ing form
I couldn't be testingyou couldn't be testing
she couldn't be testing
we couldn't be testing
you couldn't be testing
they couldn't be testing
Perfect
I couldn't have testedyou couldn't have tested
she couldn't have tested
we couldn't have tested
you couldn't have tested
they couldn't have tested
V-ing perfect
I couldn't have been testingyou couldn't have been testing
she couldn't have been testing
we couldn't have been testing
you couldn't have been testing
they couldn't have been testing
Interrogative form
Simple form
could I test?could you test?
could she test?
could we test?
could you test?
could they test?
V-ing form
could I be testing?could you be testing?
could she be testing?
could we be testing?
could you be testing?
could they be testing?
Perfect
could I have tested?could you have tested?
could she have tested?
could we have tested?
could you have tested?
could they have tested?
V-ing perfect
could I have been testing?could you have been testing?
could she have been testing?
could we have been testing?
could you have been testing?
could they have been testing?
Interro-negative form
Simple form
couldn't I test?couldn't you test?
couldn't she test?
couldn't we test?
couldn't you test?
couldn't they test?
V-ing form
couldn't I be testing?couldn't you be testing?
couldn't she be testing?
couldn't we be testing?
couldn't you be testing?
couldn't they be testing?
Perfect
couldn't I have tested?couldn't you have tested?
couldn't she have tested?
couldn't we have tested?
couldn't you have tested?
couldn't they have tested?
V-ing perfect
couldn't I have been testing?couldn't you have been testing?
couldn't she have been testing?
couldn't we have been testing?
couldn't you have been testing?
couldn't they have been testing?