I can rebuild you can rebuild he can rebuild we can rebuild you can rebuild they can rebuild
V-ing form
I can be rebuilding you can be rebuilding he can be rebuilding we can be rebuilding you can be rebuilding they can be rebuilding
Perfect
I can have rebuilt you can have rebuilt he can have rebuilt we can have rebuilt you can have rebuilt they can have rebuilt
V-ing perfect
I can have been rebuilding you can have been rebuilding he can have been rebuilding we can have been rebuilding you can have been rebuilding they can have been rebuilding
Negation
Simple form
I can't rebuild you can't rebuild he can't rebuild we can't rebuild you can't rebuild they can't rebuild
V-ing form
I can't be rebuilding you can't be rebuilding he can't be rebuilding we can't be rebuilding you can't be rebuilding they can't be rebuilding
Perfect
I can't have rebuilt you can't have rebuilt he can't have rebuilt we can't have rebuilt you can't have rebuilt they can't have rebuilt
V-ing perfect
I can't have been rebuilding you can't have been rebuilding he can't have been rebuilding we can't have been rebuilding you can't have been rebuilding they can't have been rebuilding
Interrogative form
Simple form
can I rebuild? can you rebuild? can he rebuild? can we rebuild? can you rebuild? can they rebuild?
V-ing form
can I be rebuilding? can you be rebuilding? can he be rebuilding? can we be rebuilding? can you be rebuilding? can they be rebuilding?
Perfect
can I have rebuilt? can you have rebuilt? can he have rebuilt? can we have rebuilt? can you have rebuilt? can they have rebuilt?
V-ing perfect
can I have been rebuilding? can you have been rebuilding? can he have been rebuilding? can we have been rebuilding? can you have been rebuilding? can they have been rebuilding?
Interro-negative form
Simple form
can't I rebuild? can't you rebuild? can't he rebuild? can't we rebuild? can't you rebuild? can't they rebuild?
V-ing form
can't I be rebuilding? can't you be rebuilding? can't he be rebuilding? can't we be rebuilding? can't you be rebuilding? can't they be rebuilding?
Perfect
can't I have rebuilt? can't you have rebuilt? can't he have rebuilt? can't we have rebuilt? can't you have rebuilt? can't they have rebuilt?
V-ing perfect
can't I have been rebuilding? can't you have been rebuilding? can't he have been rebuilding? can't we have been rebuilding? can't you have been rebuilding? can't they have been rebuilding?