I can mumble you can mumble he can mumble we can mumble you can mumble they can mumble
Forma con V-ing
I can be mumbling you can be mumbling he can be mumbling we can be mumbling you can be mumbling they can be mumbling
Perfecto
I can have mumbled you can have mumbled he can have mumbled we can have mumbled you can have mumbled they can have mumbled
Perfecto con V-ing
I can have been mumbling you can have been mumbling he can have been mumbling we can have been mumbling you can have been mumbling they can have been mumbling
Negación
Forma simple
I can't mumble you can't mumble he can't mumble we can't mumble you can't mumble they can't mumble
Forma con V-ing
I can't be mumbling you can't be mumbling he can't be mumbling we can't be mumbling you can't be mumbling they can't be mumbling
Perfecto
I can't have mumbled you can't have mumbled he can't have mumbled we can't have mumbled you can't have mumbled they can't have mumbled
Perfecto con V-ing
I can't have been mumbling you can't have been mumbling he can't have been mumbling we can't have been mumbling you can't have been mumbling they can't have been mumbling
Forma interrogativa
Forma simple
can I mumble? can you mumble? can he mumble? can we mumble? can you mumble? can they mumble?
Forma con V-ing
can I be mumbling? can you be mumbling? can he be mumbling? can we be mumbling? can you be mumbling? can they be mumbling?
Perfecto
can I have mumbled? can you have mumbled? can he have mumbled? can we have mumbled? can you have mumbled? can they have mumbled?
Perfecto con V-ing
can I have been mumbling? can you have been mumbling? can he have been mumbling? can we have been mumbling? can you have been mumbling? can they have been mumbling?
Forma interro-negativa
Forma simple
can't I mumble? can't you mumble? can't he mumble? can't we mumble? can't you mumble? can't they mumble?
Forma con V-ing
can't I be mumbling? can't you be mumbling? can't he be mumbling? can't we be mumbling? can't you be mumbling? can't they be mumbling?
Perfecto
can't I have mumbled? can't you have mumbled? can't he have mumbled? can't we have mumbled? can't you have mumbled? can't they have mumbled?
Perfecto con V-ing
can't I have been mumbling? can't you have been mumbling? can't he have been mumbling? can't we have been mumbling? can't you have been mumbling? can't they have been mumbling?