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 couldn't screen-test you couldn't screen-test she couldn't screen-test we couldn't screen-test you couldn't screen-test they couldn't screen-test	I couldn't be screen-testing you couldn't be screen-testing she couldn't be screen-testing we couldn't be screen-testing you couldn't be screen-testing they couldn't be screen-testing
Perfect	V-ing perfect
I couldn't have screen-tested you couldn't have screen-tested she couldn't have screen-tested we couldn't have screen-tested you couldn't have screen-tested they couldn't have screen-tested	I couldn't have been screen-testing you couldn't have been screen-testing she couldn't have been screen-testing we couldn't have been screen-testing you couldn't have been screen-testing they couldn't 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
couldn't I screen-test? couldn't you screen-test? couldn't she screen-test? couldn't we screen-test? couldn't you screen-test? couldn't they screen-test?	couldn't I be screen-testing? couldn't you be screen-testing? couldn't she be screen-testing? couldn't we be screen-testing? couldn't you be screen-testing? couldn't they be screen-testing?
Perfect	V-ing perfect
couldn't I have screen-tested? couldn't you have screen-tested? couldn't she have screen-tested? couldn't we have screen-tested? couldn't you have screen-tested? couldn't they have screen-tested?	couldn't I have been screen-testing? couldn't you have been screen-testing? couldn't she have been screen-testing? couldn't we have been screen-testing? couldn't you have been screen-testing? couldn't they have been screen-testing?