I could feign you could feign she could feign we could feign you could feign they could feign
V-ing form
I could be feigning you could be feigning she could be feigning we could be feigning you could be feigning they could be feigning
Perfect
I could have feigned you could have feigned she could have feigned we could have feigned you could have feigned they could have feigned
V-ing perfect
I could have been feigning you could have been feigning she could have been feigning we could have been feigning you could have been feigning they could have been feigning
Negation
Simple form
I couldn't feign you couldn't feign she couldn't feign we couldn't feign you couldn't feign they couldn't feign
V-ing form
I couldn't be feigning you couldn't be feigning she couldn't be feigning we couldn't be feigning you couldn't be feigning they couldn't be feigning
Perfect
I couldn't have feigned you couldn't have feigned she couldn't have feigned we couldn't have feigned you couldn't have feigned they couldn't have feigned
V-ing perfect
I couldn't have been feigning you couldn't have been feigning she couldn't have been feigning we couldn't have been feigning you couldn't have been feigning they couldn't have been feigning
Interrogative form
Simple form
could I feign? could you feign? could she feign? could we feign? could you feign? could they feign?
V-ing form
could I be feigning? could you be feigning? could she be feigning? could we be feigning? could you be feigning? could they be feigning?
Perfect
could I have feigned? could you have feigned? could she have feigned? could we have feigned? could you have feigned? could they have feigned?
V-ing perfect
could I have been feigning? could you have been feigning? could she have been feigning? could we have been feigning? could you have been feigning? could they have been feigning?
Interro-negative form
Simple form
couldn't I feign? couldn't you feign? couldn't she feign? couldn't we feign? couldn't you feign? couldn't they feign?
V-ing form
couldn't I be feigning? couldn't you be feigning? couldn't she be feigning? couldn't we be feigning? couldn't you be feigning? couldn't they be feigning?
Perfect
couldn't I have feigned? couldn't you have feigned? couldn't she have feigned? couldn't we have feigned? couldn't you have feigned? couldn't they have feigned?
V-ing perfect
couldn't I have been feigning? couldn't you have been feigning? couldn't she have been feigning? couldn't we have been feigning? couldn't you have been feigning? couldn't they have been feigning?