Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I can prefacer you can prefacer he can prefacer we can prefacer you can prefacer they can prefacer
Forma com V-ing
I can be prefacering you can be prefacering he can be prefacering we can be prefacering you can be prefacering they can be prefacering
Perfeito
I can have prefacered you can have prefacered he can have prefacered we can have prefacered you can have prefacered they can have prefacered
Perfeito com V-ing
I can have been prefacering you can have been prefacering he can have been prefacering we can have been prefacering you can have been prefacering they can have been prefacering
Negação
Forma simple
I cannot prefacer you cannot prefacer he cannot prefacer we cannot prefacer you cannot prefacer they cannot prefacer
Forma com V-ing
I cannot be prefacering you cannot be prefacering he cannot be prefacering we cannot be prefacering you cannot be prefacering they cannot be prefacering
Perfeito
I cannot have prefacered you cannot have prefacered he cannot have prefacered we cannot have prefacered you cannot have prefacered they cannot have prefacered
Perfeito com V-ing
I cannot have been prefacering you cannot have been prefacering he cannot have been prefacering we cannot have been prefacering you cannot have been prefacering they cannot have been prefacering
Forma interrogativa
Forma simple
can I prefacer? can you prefacer? can he prefacer? can we prefacer? can you prefacer? can they prefacer?
Forma com V-ing
can I be prefacering? can you be prefacering? can he be prefacering? can we be prefacering? can you be prefacering? can they be prefacering?
Perfeito
can I have prefacered? can you have prefacered? can he have prefacered? can we have prefacered? can you have prefacered? can they have prefacered?
Perfeito com V-ing
can I have been prefacering? can you have been prefacering? can he have been prefacering? can we have been prefacering? can you have been prefacering? can they have been prefacering?
Forma interro-Negação
Forma simple
can I not prefacer? can you not prefacer? can he not prefacer? can we not prefacer? can you not prefacer? can they not prefacer?
Forma com V-ing
can I not be prefacering? can you not be prefacering? can he not be prefacering? can we not be prefacering? can you not be prefacering? can they not be prefacering?
Perfeito
can I not have prefacered? can you not have prefacered? can he not have prefacered? can we not have prefacered? can you not have prefacered? can they not have prefacered?
Perfeito com V-ing
can I not have been prefacering? can you not have been prefacering? can he not have been prefacering? can we not have been prefacering? can you not have been prefacering? can they not have been prefacering?