I can crumble you can crumble he can crumble we can crumble you can crumble they can crumble
Forma con V-ing
I can be crumbling you can be crumbling he can be crumbling we can be crumbling you can be crumbling they can be crumbling
Perfetto
I can have crumbled you can have crumbled he can have crumbled we can have crumbled you can have crumbled they can have crumbled
Perfetto con V-ing
I can have been crumbling you can have been crumbling he can have been crumbling we can have been crumbling you can have been crumbling they can have been crumbling
Negazione
Forma semplice
I cannot crumble you cannot crumble he cannot crumble we cannot crumble you cannot crumble they cannot crumble
Forma con V-ing
I cannot be crumbling you cannot be crumbling he cannot be crumbling we cannot be crumbling you cannot be crumbling they cannot be crumbling
Perfetto
I cannot have crumbled you cannot have crumbled he cannot have crumbled we cannot have crumbled you cannot have crumbled they cannot have crumbled
Perfetto con V-ing
I cannot have been crumbling you cannot have been crumbling he cannot have been crumbling we cannot have been crumbling you cannot have been crumbling they cannot have been crumbling
Forma interrogativa
Forma semplice
can I crumble? can you crumble? can he crumble? can we crumble? can you crumble? can they crumble?
Forma con V-ing
can I be crumbling? can you be crumbling? can he be crumbling? can we be crumbling? can you be crumbling? can they be crumbling?
Perfetto
can I have crumbled? can you have crumbled? can he have crumbled? can we have crumbled? can you have crumbled? can they have crumbled?
Perfetto con V-ing
can I have been crumbling? can you have been crumbling? can he have been crumbling? can we have been crumbling? can you have been crumbling? can they have been crumbling?
Forma interro-negativa
Forma semplice
can I not crumble? can you not crumble? can he not crumble? can we not crumble? can you not crumble? can they not crumble?
Forma con V-ing
can I not be crumbling? can you not be crumbling? can he not be crumbling? can we not be crumbling? can you not be crumbling? can they not be crumbling?
Perfetto
can I not have crumbled? can you not have crumbled? can he not have crumbled? can we not have crumbled? can you not have crumbled? can they not have crumbled?
Perfetto con V-ing
can I not have been crumbling? can you not have been crumbling? can he not have been crumbling? can we not have been crumbling? can you not have been crumbling? can they not have been crumbling?