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