I could jest you could jest he could jest we could jest you could jest they could jest
Forma com V-ing
I could be jesting you could be jesting he could be jesting we could be jesting you could be jesting they could be jesting
Perfeito
I could have jested you could have jested he could have jested we could have jested you could have jested they could have jested
Perfeito com V-ing
I could have been jesting you could have been jesting he could have been jesting we could have been jesting you could have been jesting they could have been jesting
Negação
Forma simple
I could not jest you could not jest he could not jest we could not jest you could not jest they could not jest
Forma com V-ing
I could not be jesting you could not be jesting he could not be jesting we could not be jesting you could not be jesting they could not be jesting
Perfeito
I could not have jested you could not have jested he could not have jested we could not have jested you could not have jested they could not have jested
Perfeito com V-ing
I could not have been jesting you could not have been jesting he could not have been jesting we could not have been jesting you could not have been jesting they could not have been jesting
Forma interrogativa
Forma simple
could I jest? could you jest? could he jest? could we jest? could you jest? could they jest?
Forma com V-ing
could I be jesting? could you be jesting? could he be jesting? could we be jesting? could you be jesting? could they be jesting?
Perfeito
could I have jested? could you have jested? could he have jested? could we have jested? could you have jested? could they have jested?
Perfeito com V-ing
could I have been jesting? could you have been jesting? could he have been jesting? could we have been jesting? could you have been jesting? could they have been jesting?
Forma interro-Negação
Forma simple
could I not jest? could you not jest? could he not jest? could we not jest? could you not jest? could they not jest?
Forma com V-ing
could I not be jesting? could you not be jesting? could he not be jesting? could we not be jesting? could you not be jesting? could they not be jesting?
Perfeito
could I not have jested? could you not have jested? could he not have jested? could we not have jested? could you not have jested? could they not have jested?
Perfeito com V-ing
could I not have been jesting? could you not have been jesting? could he not have been jesting? could we not have been jesting? could you not have been jesting? could they not have been jesting?