I can keyboard you can keyboard he can keyboard we can keyboard you can keyboard they can keyboard
Forma com V-ing
I can be keyboarding you can be keyboarding he can be keyboarding we can be keyboarding you can be keyboarding they can be keyboarding
Perfeito
I can have keyboarded you can have keyboarded he can have keyboarded we can have keyboarded you can have keyboarded they can have keyboarded
Perfeito com V-ing
I can have been keyboarding you can have been keyboarding he can have been keyboarding we can have been keyboarding you can have been keyboarding they can have been keyboarding
Negação
Forma simple
I cannot keyboard you cannot keyboard he cannot keyboard we cannot keyboard you cannot keyboard they cannot keyboard
Forma com V-ing
I cannot be keyboarding you cannot be keyboarding he cannot be keyboarding we cannot be keyboarding you cannot be keyboarding they cannot be keyboarding
Perfeito
I cannot have keyboarded you cannot have keyboarded he cannot have keyboarded we cannot have keyboarded you cannot have keyboarded they cannot have keyboarded
Perfeito com V-ing
I cannot have been keyboarding you cannot have been keyboarding he cannot have been keyboarding we cannot have been keyboarding you cannot have been keyboarding they cannot have been keyboarding
Forma interrogativa
Forma simple
can I keyboard? can you keyboard? can he keyboard? can we keyboard? can you keyboard? can they keyboard?
Forma com V-ing
can I be keyboarding? can you be keyboarding? can he be keyboarding? can we be keyboarding? can you be keyboarding? can they be keyboarding?
Perfeito
can I have keyboarded? can you have keyboarded? can he have keyboarded? can we have keyboarded? can you have keyboarded? can they have keyboarded?
Perfeito com V-ing
can I have been keyboarding? can you have been keyboarding? can he have been keyboarding? can we have been keyboarding? can you have been keyboarding? can they have been keyboarding?
Forma interro-Negação
Forma simple
can I not keyboard? can you not keyboard? can he not keyboard? can we not keyboard? can you not keyboard? can they not keyboard?
Forma com V-ing
can I not be keyboarding? can you not be keyboarding? can he not be keyboarding? can we not be keyboarding? can you not be keyboarding? can they not be keyboarding?
Perfeito
can I not have keyboarded? can you not have keyboarded? can he not have keyboarded? can we not have keyboarded? can you not have keyboarded? can they not have keyboarded?
Perfeito com V-ing
can I not have been keyboarding? can you not have been keyboarding? can he not have been keyboarding? can we not have been keyboarding? can you not have been keyboarding? can they not have been keyboarding?