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