I can belch you can belch he can belch we can belch you can belch they can belch
V-ing form
I can be belching you can be belching he can be belching we can be belching you can be belching they can be belching
Perfect
I can have belched you can have belched he can have belched we can have belched you can have belched they can have belched
V-ing perfect
I can have been belching you can have been belching he can have been belching we can have been belching you can have been belching they can have been belching
Negation
Simple form
I cannot belch you cannot belch he cannot belch we cannot belch you cannot belch they cannot belch
V-ing form
I cannot be belching you cannot be belching he cannot be belching we cannot be belching you cannot be belching they cannot be belching
Perfect
I cannot have belched you cannot have belched he cannot have belched we cannot have belched you cannot have belched they cannot have belched
V-ing perfect
I cannot have been belching you cannot have been belching he cannot have been belching we cannot have been belching you cannot have been belching they cannot have been belching
Interrogative form
Simple form
can I belch? can you belch? can he belch? can we belch? can you belch? can they belch?
V-ing form
can I be belching? can you be belching? can he be belching? can we be belching? can you be belching? can they be belching?
Perfect
can I have belched? can you have belched? can he have belched? can we have belched? can you have belched? can they have belched?
V-ing perfect
can I have been belching? can you have been belching? can he have been belching? can we have been belching? can you have been belching? can they have been belching?
Interro-negative form
Simple form
can I not belch? can you not belch? can he not belch? can we not belch? can you not belch? can they not belch?
V-ing form
can I not be belching? can you not be belching? can he not be belching? can we not be belching? can you not be belching? can they not be belching?
Perfect
can I not have belched? can you not have belched? can he not have belched? can we not have belched? can you not have belched? can they not have belched?
V-ing perfect
can I not have been belching? can you not have been belching? can he not have been belching? can we not have been belching? can you not have been belching? can they not have been belching?