I could section you could section he could section we could section you could section they could section
V-ing form
I could be sectioning you could be sectioning he could be sectioning we could be sectioning you could be sectioning they could be sectioning
Perfect
I could have sectioned you could have sectioned he 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 he 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 he 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 he 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 he 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 he 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 he section? could we section? could you section? could they section?
V-ing form
could I be sectioning? could you be sectioning? could he be sectioning? could we be sectioning? could you be sectioning? could they be sectioning?
Perfect
could I have sectioned? could you have sectioned? could he 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 he 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 he 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 he 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 he 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 he have been sectioning? couldn't we have been sectioning? couldn't you have been sectioning? couldn't they have been sectioning?