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