I can rebuild you can rebuild she can rebuild we can rebuild you can rebuild they can rebuild
V-ing form
I can be rebuilding you can be rebuilding she can be rebuilding we can be rebuilding you can be rebuilding they can be rebuilding
Perfect
I can have rebuilt you can have rebuilt she 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 she can have been rebuilding we can have been rebuilding you can have been rebuilding they can have been rebuilding
Negation
Simple form
I cannot rebuild you cannot rebuild she cannot rebuild we cannot rebuild you cannot rebuild they cannot rebuild
V-ing form
I cannot be rebuilding you cannot be rebuilding she cannot be rebuilding we cannot be rebuilding you cannot be rebuilding they cannot be rebuilding
Perfect
I cannot have rebuilt you cannot have rebuilt she cannot have rebuilt we cannot have rebuilt you cannot have rebuilt they cannot have rebuilt
V-ing perfect
I cannot have been rebuilding you cannot have been rebuilding she cannot have been rebuilding we cannot have been rebuilding you cannot have been rebuilding they cannot have been rebuilding
Interrogative form
Simple form
can I rebuild? can you rebuild? can she rebuild? can we rebuild? can you rebuild? can they rebuild?
V-ing form
can I be rebuilding? can you be rebuilding? can she be rebuilding? can we be rebuilding? can you be rebuilding? can they be rebuilding?
Perfect
can I have rebuilt? can you have rebuilt? can she 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 she have been rebuilding? can we have been rebuilding? can you have been rebuilding? can they have been rebuilding?
Interro-negative form
Simple form
can I not rebuild? can you not rebuild? can she not rebuild? can we not rebuild? can you not rebuild? can they not rebuild?
V-ing form
can I not be rebuilding? can you not be rebuilding? can she not be rebuilding? can we not be rebuilding? can you not be rebuilding? can they not be rebuilding?
Perfect
can I not have rebuilt? can you not have rebuilt? can she not have rebuilt? can we not have rebuilt? can you not have rebuilt? can they not have rebuilt?
V-ing perfect
can I not have been rebuilding? can you not have been rebuilding? can she not have been rebuilding? can we not have been rebuilding? can you not have been rebuilding? can they not have been rebuilding?