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