I can brabble you can brabble he can brabble we can brabble you can brabble they can brabble
V-ing form
I can be brabbling you can be brabbling he can be brabbling we can be brabbling you can be brabbling they can be brabbling
Perfect
I can have brabbled you can have brabbled he can have brabbled we can have brabbled you can have brabbled they can have brabbled
V-ing perfect
I can have been brabbling you can have been brabbling he can have been brabbling we can have been brabbling you can have been brabbling they can have been brabbling
Negation
Simple form
I cannot brabble you cannot brabble he cannot brabble we cannot brabble you cannot brabble they cannot brabble
V-ing form
I cannot be brabbling you cannot be brabbling he cannot be brabbling we cannot be brabbling you cannot be brabbling they cannot be brabbling
Perfect
I cannot have brabbled you cannot have brabbled he cannot have brabbled we cannot have brabbled you cannot have brabbled they cannot have brabbled
V-ing perfect
I cannot have been brabbling you cannot have been brabbling he cannot have been brabbling we cannot have been brabbling you cannot have been brabbling they cannot have been brabbling
Interrogative form
Simple form
can I brabble? can you brabble? can he brabble? can we brabble? can you brabble? can they brabble?
V-ing form
can I be brabbling? can you be brabbling? can he be brabbling? can we be brabbling? can you be brabbling? can they be brabbling?
Perfect
can I have brabbled? can you have brabbled? can he have brabbled? can we have brabbled? can you have brabbled? can they have brabbled?
V-ing perfect
can I have been brabbling? can you have been brabbling? can he have been brabbling? can we have been brabbling? can you have been brabbling? can they have been brabbling?
Interro-negative form
Simple form
can I not brabble? can you not brabble? can he not brabble? can we not brabble? can you not brabble? can they not brabble?
V-ing form
can I not be brabbling? can you not be brabbling? can he not be brabbling? can we not be brabbling? can you not be brabbling? can they not be brabbling?
Perfect
can I not have brabbled? can you not have brabbled? can he not have brabbled? can we not have brabbled? can you not have brabbled? can they not have brabbled?
V-ing perfect
can I not have been brabbling? can you not have been brabbling? can he not have been brabbling? can we not have been brabbling? can you not have been brabbling? can they not have been brabbling?