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