English verb conjugation
COULD SCREEN-TEST

Regular verb: screen-test - screen-tested - screen-tested

Affirmation

Simple form	V-ing form
I could screen-test you could screen-test she could screen-test we could screen-test you could screen-test they could screen-test	I could be screen-testing you could be screen-testing she could be screen-testing we could be screen-testing you could be screen-testing they could be screen-testing
Perfect	V-ing perfect
I could have screen-tested you could have screen-tested she could have screen-tested we could have screen-tested you could have screen-tested they could have screen-tested	I could have been screen-testing you could have been screen-testing she could have been screen-testing we could have been screen-testing you could have been screen-testing they could have been screen-testing

Negation

Simple form	V-ing form
I could not screen-test you could not screen-test she could not screen-test we could not screen-test you could not screen-test they could not screen-test	I could not be screen-testing you could not be screen-testing she could not be screen-testing we could not be screen-testing you could not be screen-testing they could not be screen-testing
Perfect	V-ing perfect
I could not have screen-tested you could not have screen-tested she could not have screen-tested we could not have screen-tested you could not have screen-tested they could not have screen-tested	I could not have been screen-testing you could not have been screen-testing she could not have been screen-testing we could not have been screen-testing you could not have been screen-testing they could not have been screen-testing

Interrogative form

Simple form	V-ing form
could I screen-test? could you screen-test? could she screen-test? could we screen-test? could you screen-test? could they screen-test?	could I be screen-testing? could you be screen-testing? could she be screen-testing? could we be screen-testing? could you be screen-testing? could they be screen-testing?
Perfect	V-ing perfect
could I have screen-tested? could you have screen-tested? could she have screen-tested? could we have screen-tested? could you have screen-tested? could they have screen-tested?	could I have been screen-testing? could you have been screen-testing? could she have been screen-testing? could we have been screen-testing? could you have been screen-testing? could they have been screen-testing?

Interro-negative form

Simple form	V-ing form
could I not screen-test? could you not screen-test? could she not screen-test? could we not screen-test? could you not screen-test? could they not screen-test?	could I not be screen-testing? could you not be screen-testing? could she not be screen-testing? could we not be screen-testing? could you not be screen-testing? could they not be screen-testing?
Perfect	V-ing perfect
could I not have screen-tested? could you not have screen-tested? could she not have screen-tested? could we not have screen-tested? could you not have screen-tested? could they not have screen-tested?	could I not have been screen-testing? could you not have been screen-testing? could she not have been screen-testing? could we not have been screen-testing? could you not have been screen-testing? could they not have been screen-testing?