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 can't belch you can't belch he can't belch we can't belch you can't belch they can't belch
V-ing form
I can't be belching you can't be belching he can't be belching we can't be belching you can't be belching they can't be belching
Perfect
I can't have belched you can't have belched he can't have belched we can't have belched you can't have belched they can't have belched
V-ing perfect
I can't have been belching you can't have been belching he can't have been belching we can't have been belching you can't have been belching they can't 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't I belch? can't you belch? can't he belch? can't we belch? can't you belch? can't they belch?
V-ing form
can't I be belching? can't you be belching? can't he be belching? can't we be belching? can't you be belching? can't they be belching?
Perfect
can't I have belched? can't you have belched? can't he have belched? can't we have belched? can't you have belched? can't they have belched?
V-ing perfect
can't I have been belching? can't you have been belching? can't he have been belching? can't we have been belching? can't you have been belching? can't they have been belching?