I could chariot you could chariot he could chariot we could chariot you could chariot they could chariot
V-ing form
I could be charioting you could be charioting he could be charioting we could be charioting you could be charioting they could be charioting
Perfect
I could have charioted you could have charioted he could have charioted we could have charioted you could have charioted they could have charioted
V-ing perfect
I could have been charioting you could have been charioting he could have been charioting we could have been charioting you could have been charioting they could have been charioting
Negation
Simple form
I couldn't chariot you couldn't chariot he couldn't chariot we couldn't chariot you couldn't chariot they couldn't chariot
V-ing form
I couldn't be charioting you couldn't be charioting he couldn't be charioting we couldn't be charioting you couldn't be charioting they couldn't be charioting
Perfect
I couldn't have charioted you couldn't have charioted he couldn't have charioted we couldn't have charioted you couldn't have charioted they couldn't have charioted
V-ing perfect
I couldn't have been charioting you couldn't have been charioting he couldn't have been charioting we couldn't have been charioting you couldn't have been charioting they couldn't have been charioting
Interrogative form
Simple form
could I chariot? could you chariot? could he chariot? could we chariot? could you chariot? could they chariot?
V-ing form
could I be charioting? could you be charioting? could he be charioting? could we be charioting? could you be charioting? could they be charioting?
Perfect
could I have charioted? could you have charioted? could he have charioted? could we have charioted? could you have charioted? could they have charioted?
V-ing perfect
could I have been charioting? could you have been charioting? could he have been charioting? could we have been charioting? could you have been charioting? could they have been charioting?
Interro-negative form
Simple form
couldn't I chariot? couldn't you chariot? couldn't he chariot? couldn't we chariot? couldn't you chariot? couldn't they chariot?
V-ing form
couldn't I be charioting? couldn't you be charioting? couldn't he be charioting? couldn't we be charioting? couldn't you be charioting? couldn't they be charioting?
Perfect
couldn't I have charioted? couldn't you have charioted? couldn't he have charioted? couldn't we have charioted? couldn't you have charioted? couldn't they have charioted?
V-ing perfect
couldn't I have been charioting? couldn't you have been charioting? couldn't he have been charioting? couldn't we have been charioting? couldn't you have been charioting? couldn't they have been charioting?