I can quit you can quit he can quit we can quit you can quit they can quit
Forma con 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
Perfecto
I can have quit you can have quit he can have quit we can have quit you can have quit they can have quit
Perfecto con 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
Negación
Forma simple
I can't quit you can't quit he can't quit we can't quit you can't quit they can't quit
Forma con V-ing
I can't be quitting you can't be quitting he can't be quitting we can't be quitting you can't be quitting they can't be quitting
Perfecto
I can't have quit you can't have quit he can't have quit we can't have quit you can't have quit they can't have quit
Perfecto con V-ing
I can't have been quitting you can't have been quitting he can't have been quitting we can't have been quitting you can't have been quitting they can't 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 con 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?
Perfecto
can I have quit? can you have quit? can he have quit? can we have quit? can you have quit? can they have quit?
Perfecto con 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-negativa
Forma simple
can't I quit? can't you quit? can't he quit? can't we quit? can't you quit? can't they quit?
Forma con V-ing
can't I be quitting? can't you be quitting? can't he be quitting? can't we be quitting? can't you be quitting? can't they be quitting?
Perfecto
can't I have quit? can't you have quit? can't he have quit? can't we have quit? can't you have quit? can't they have quit?
Perfecto con V-ing
can't I have been quitting? can't you have been quitting? can't he have been quitting? can't we have been quitting? can't you have been quitting? can't they have been quitting?