I could featherbed you could featherbed she could featherbed we could featherbed you could featherbed they could featherbed
V-ing form
I could be featherbeding you could be featherbeding she could be featherbeding we could be featherbeding you could be featherbeding they could be featherbeding
Perfect
I could have featherbeded you could have featherbeded she could have featherbeded we could have featherbeded you could have featherbeded they could have featherbeded
V-ing perfect
I could have been featherbeding you could have been featherbeding she could have been featherbeding we could have been featherbeding you could have been featherbeding they could have been featherbeding
Negation
Simple form
I could not featherbed you could not featherbed she could not featherbed we could not featherbed you could not featherbed they could not featherbed
V-ing form
I could not be featherbeding you could not be featherbeding she could not be featherbeding we could not be featherbeding you could not be featherbeding they could not be featherbeding
Perfect
I could not have featherbeded you could not have featherbeded she could not have featherbeded we could not have featherbeded you could not have featherbeded they could not have featherbeded
V-ing perfect
I could not have been featherbeding you could not have been featherbeding she could not have been featherbeding we could not have been featherbeding you could not have been featherbeding they could not have been featherbeding
Interrogative form
Simple form
could I featherbed? could you featherbed? could she featherbed? could we featherbed? could you featherbed? could they featherbed?
V-ing form
could I be featherbeding? could you be featherbeding? could she be featherbeding? could we be featherbeding? could you be featherbeding? could they be featherbeding?
Perfect
could I have featherbeded? could you have featherbeded? could she have featherbeded? could we have featherbeded? could you have featherbeded? could they have featherbeded?
V-ing perfect
could I have been featherbeding? could you have been featherbeding? could she have been featherbeding? could we have been featherbeding? could you have been featherbeding? could they have been featherbeding?
Interro-negative form
Simple form
could I not featherbed? could you not featherbed? could she not featherbed? could we not featherbed? could you not featherbed? could they not featherbed?
V-ing form
could I not be featherbeding? could you not be featherbeding? could she not be featherbeding? could we not be featherbeding? could you not be featherbeding? could they not be featherbeding?
Perfect
could I not have featherbeded? could you not have featherbeded? could she not have featherbeded? could we not have featherbeded? could you not have featherbeded? could they not have featherbeded?
V-ing perfect
could I not have been featherbeding? could you not have been featherbeding? could she not have been featherbeding? could we not have been featherbeding? could you not have been featherbeding? could they not have been featherbeding?