I could jerry-build you could jerry-build she could jerry-build we could jerry-build you could jerry-build they could jerry-build
V-ing form
I could be jerry-building you could be jerry-building she could be jerry-building we could be jerry-building you could be jerry-building they could be jerry-building
Perfect
I could have jerry-built you could have jerry-built she could have jerry-built we could have jerry-built you could have jerry-built they could have jerry-built
V-ing perfect
I could have been jerry-building you could have been jerry-building she could have been jerry-building we could have been jerry-building you could have been jerry-building they could have been jerry-building
Negation
Simple form
I could not jerry-build you could not jerry-build she could not jerry-build we could not jerry-build you could not jerry-build they could not jerry-build
V-ing form
I could not be jerry-building you could not be jerry-building she could not be jerry-building we could not be jerry-building you could not be jerry-building they could not be jerry-building
Perfect
I could not have jerry-built you could not have jerry-built she could not have jerry-built we could not have jerry-built you could not have jerry-built they could not have jerry-built
V-ing perfect
I could not have been jerry-building you could not have been jerry-building she could not have been jerry-building we could not have been jerry-building you could not have been jerry-building they could not have been jerry-building
Interrogative form
Simple form
could I jerry-build? could you jerry-build? could she jerry-build? could we jerry-build? could you jerry-build? could they jerry-build?
V-ing form
could I be jerry-building? could you be jerry-building? could she be jerry-building? could we be jerry-building? could you be jerry-building? could they be jerry-building?
Perfect
could I have jerry-built? could you have jerry-built? could she have jerry-built? could we have jerry-built? could you have jerry-built? could they have jerry-built?
V-ing perfect
could I have been jerry-building? could you have been jerry-building? could she have been jerry-building? could we have been jerry-building? could you have been jerry-building? could they have been jerry-building?
Interro-negative form
Simple form
could I not jerry-build? could you not jerry-build? could she not jerry-build? could we not jerry-build? could you not jerry-build? could they not jerry-build?
V-ing form
could I not be jerry-building? could you not be jerry-building? could she not be jerry-building? could we not be jerry-building? could you not be jerry-building? could they not be jerry-building?
Perfect
could I not have jerry-built? could you not have jerry-built? could she not have jerry-built? could we not have jerry-built? could you not have jerry-built? could they not have jerry-built?
V-ing perfect
could I not have been jerry-building? could you not have been jerry-building? could she not have been jerry-building? could we not have been jerry-building? could you not have been jerry-building? could they not have been jerry-building?