Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I could be be you could be be she could be be we could be be you could be be they could be be
Forma com V-ing
I could be be bing you could be be bing she could be be bing we could be be bing you could be be bing they could be be bing
Perfeito
I could have be bed you could have be bed she could have be bed we could have be bed you could have be bed they could have be bed
Perfeito com V-ing
I could have been be bing you could have been be bing she could have been be bing we could have been be bing you could have been be bing they could have been be bing
Negação
Forma simple
I couldn't be be you couldn't be be she couldn't be be we couldn't be be you couldn't be be they couldn't be be
Forma com V-ing
I couldn't be be bing you couldn't be be bing she couldn't be be bing we couldn't be be bing you couldn't be be bing they couldn't be be bing
Perfeito
I couldn't have be bed you couldn't have be bed she couldn't have be bed we couldn't have be bed you couldn't have be bed they couldn't have be bed
Perfeito com V-ing
I couldn't have been be bing you couldn't have been be bing she couldn't have been be bing we couldn't have been be bing you couldn't have been be bing they couldn't have been be bing
Forma interrogativa
Forma simple
could I be be? could you be be? could she be be? could we be be? could you be be? could they be be?
Forma com V-ing
could I be be bing? could you be be bing? could she be be bing? could we be be bing? could you be be bing? could they be be bing?
Perfeito
could I have be bed? could you have be bed? could she have be bed? could we have be bed? could you have be bed? could they have be bed?
Perfeito com V-ing
could I have been be bing? could you have been be bing? could she have been be bing? could we have been be bing? could you have been be bing? could they have been be bing?
Forma interro-Negação
Forma simple
couldn't I be be? couldn't you be be? couldn't she be be? couldn't we be be? couldn't you be be? couldn't they be be?
Forma com V-ing
couldn't I be be bing? couldn't you be be bing? couldn't she be be bing? couldn't we be be bing? couldn't you be be bing? couldn't they be be bing?
Perfeito
couldn't I have be bed? couldn't you have be bed? couldn't she have be bed? couldn't we have be bed? couldn't you have be bed? couldn't they have be bed?
Perfeito com V-ing
couldn't I have been be bing? couldn't you have been be bing? couldn't she have been be bing? couldn't we have been be bing? couldn't you have been be bing? couldn't they have been be bing?