English verb conjugation
COULD AFFECT

Regular verb: affect - affected - affected

Affirmation

Simple form	V-ing form
I could affect you could affect he could affect we could affect you could affect they could affect	I could be affecting you could be affecting he could be affecting we could be affecting you could be affecting they could be affecting
Perfect	V-ing perfect
I could have affected you could have affected he could have affected we could have affected you could have affected they could have affected	I could have been affecting you could have been affecting he could have been affecting we could have been affecting you could have been affecting they could have been affecting

Negation

Simple form	V-ing form
I could not affect you could not affect he could not affect we could not affect you could not affect they could not affect	I could not be affecting you could not be affecting he could not be affecting we could not be affecting you could not be affecting they could not be affecting
Perfect	V-ing perfect
I could not have affected you could not have affected he could not have affected we could not have affected you could not have affected they could not have affected	I could not have been affecting you could not have been affecting he could not have been affecting we could not have been affecting you could not have been affecting they could not have been affecting

Interrogative form

Simple form	V-ing form
could I affect? could you affect? could he affect? could we affect? could you affect? could they affect?	could I be affecting? could you be affecting? could he be affecting? could we be affecting? could you be affecting? could they be affecting?
Perfect	V-ing perfect
could I have affected? could you have affected? could he have affected? could we have affected? could you have affected? could they have affected?	could I have been affecting? could you have been affecting? could he have been affecting? could we have been affecting? could you have been affecting? could they have been affecting?

Interro-negative form

Simple form	V-ing form
could I not affect? could you not affect? could he not affect? could we not affect? could you not affect? could they not affect?	could I not be affecting? could you not be affecting? could he not be affecting? could we not be affecting? could you not be affecting? could they not be affecting?
Perfect	V-ing perfect
could I not have affected? could you not have affected? could he not have affected? could we not have affected? could you not have affected? could they not have affected?	could I not have been affecting? could you not have been affecting? could he not have been affecting? could we not have been affecting? could you not have been affecting? could they not have been affecting?