I can chew you can chew he can chew we can chew you can chew they can chew
Forma con V-ing
I can be chewing you can be chewing he can be chewing we can be chewing you can be chewing they can be chewing
Perfecto
I can have chewed you can have chewed he can have chewed we can have chewed you can have chewed they can have chewed
Perfecto con V-ing
I can have been chewing you can have been chewing he can have been chewing we can have been chewing you can have been chewing they can have been chewing
Negación
Forma simple
I can't chew you can't chew he can't chew we can't chew you can't chew they can't chew
Forma con V-ing
I can't be chewing you can't be chewing he can't be chewing we can't be chewing you can't be chewing they can't be chewing
Perfecto
I can't have chewed you can't have chewed he can't have chewed we can't have chewed you can't have chewed they can't have chewed
Perfecto con V-ing
I can't have been chewing you can't have been chewing he can't have been chewing we can't have been chewing you can't have been chewing they can't have been chewing
Forma interrogativa
Forma simple
can I chew? can you chew? can he chew? can we chew? can you chew? can they chew?
Forma con V-ing
can I be chewing? can you be chewing? can he be chewing? can we be chewing? can you be chewing? can they be chewing?
Perfecto
can I have chewed? can you have chewed? can he have chewed? can we have chewed? can you have chewed? can they have chewed?
Perfecto con V-ing
can I have been chewing? can you have been chewing? can he have been chewing? can we have been chewing? can you have been chewing? can they have been chewing?
Forma interro-negativa
Forma simple
can't I chew? can't you chew? can't he chew? can't we chew? can't you chew? can't they chew?
Forma con V-ing
can't I be chewing? can't you be chewing? can't he be chewing? can't we be chewing? can't you be chewing? can't they be chewing?
Perfecto
can't I have chewed? can't you have chewed? can't he have chewed? can't we have chewed? can't you have chewed? can't they have chewed?
Perfecto con V-ing
can't I have been chewing? can't you have been chewing? can't he have been chewing? can't we have been chewing? can't you have been chewing? can't they have been chewing?