I could belch you could belch he could belch we could belch you could belch they could belch
Forma com V-ing
I could be belching you could be belching he could be belching we could be belching you could be belching they could be belching
Perfeito
I could have belched you could have belched he could have belched we could have belched you could have belched they could have belched
Perfeito com V-ing
I could have been belching you could have been belching he could have been belching we could have been belching you could have been belching they could have been belching
Negação
Forma simple
I couldn't belch you couldn't belch he couldn't belch we couldn't belch you couldn't belch they couldn't belch
Forma com V-ing
I couldn't be belching you couldn't be belching he couldn't be belching we couldn't be belching you couldn't be belching they couldn't be belching
Perfeito
I couldn't have belched you couldn't have belched he couldn't have belched we couldn't have belched you couldn't have belched they couldn't have belched
Perfeito com V-ing
I couldn't have been belching you couldn't have been belching he couldn't have been belching we couldn't have been belching you couldn't have been belching they couldn't have been belching
Forma interrogativa
Forma simple
could I belch? could you belch? could he belch? could we belch? could you belch? could they belch?
Forma com V-ing
could I be belching? could you be belching? could he be belching? could we be belching? could you be belching? could they be belching?
Perfeito
could I have belched? could you have belched? could he have belched? could we have belched? could you have belched? could they have belched?
Perfeito com V-ing
could I have been belching? could you have been belching? could he have been belching? could we have been belching? could you have been belching? could they have been belching?
Forma interro-Negação
Forma simple
couldn't I belch? couldn't you belch? couldn't he belch? couldn't we belch? couldn't you belch? couldn't they belch?
Forma com V-ing
couldn't I be belching? couldn't you be belching? couldn't he be belching? couldn't we be belching? couldn't you be belching? couldn't they be belching?
Perfeito
couldn't I have belched? couldn't you have belched? couldn't he have belched? couldn't we have belched? couldn't you have belched? couldn't they have belched?
Perfeito com V-ing
couldn't I have been belching? couldn't you have been belching? couldn't he have been belching? couldn't we have been belching? couldn't you have been belching? couldn't they have been belching?