English verb conjugation
COULD AFFECT

Regular verb: affect - affected - affected

Affirmation

Simple form	V-ing form
I could affect you could affect she could affect we could affect you could affect they could affect	I could be affecting you could be affecting she 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 she 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 she 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 couldn't affect you couldn't affect she couldn't affect we couldn't affect you couldn't affect they couldn't affect	I couldn't be affecting you couldn't be affecting she couldn't be affecting we couldn't be affecting you couldn't be affecting they couldn't be affecting
Perfect	V-ing perfect
I couldn't have affected you couldn't have affected she couldn't have affected we couldn't have affected you couldn't have affected they couldn't have affected	I couldn't have been affecting you couldn't have been affecting she couldn't have been affecting we couldn't have been affecting you couldn't have been affecting they couldn't have been affecting

Interrogative form

Simple form	V-ing form
could I affect? could you affect? could she affect? could we affect? could you affect? could they affect?	could I be affecting? could you be affecting? could she 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 she 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 she 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
couldn't I affect? couldn't you affect? couldn't she affect? couldn't we affect? couldn't you affect? couldn't they affect?	couldn't I be affecting? couldn't you be affecting? couldn't she be affecting? couldn't we be affecting? couldn't you be affecting? couldn't they be affecting?
Perfect	V-ing perfect
couldn't I have affected? couldn't you have affected? couldn't she have affected? couldn't we have affected? couldn't you have affected? couldn't they have affected?	couldn't I have been affecting? couldn't you have been affecting? couldn't she have been affecting? couldn't we have been affecting? couldn't you have been affecting? couldn't they have been affecting?