I can web you can web he can web we can web you can web they can web
Forma con V-ing
I can be webing you can be webing he can be webing we can be webing you can be webing they can be webing
Perfecto
I can have webed you can have webed he can have webed we can have webed you can have webed they can have webed
Perfecto con V-ing
I can have been webing you can have been webing he can have been webing we can have been webing you can have been webing they can have been webing
Negación
Forma simple
I can't web you can't web he can't web we can't web you can't web they can't web
Forma con V-ing
I can't be webing you can't be webing he can't be webing we can't be webing you can't be webing they can't be webing
Perfecto
I can't have webed you can't have webed he can't have webed we can't have webed you can't have webed they can't have webed
Perfecto con V-ing
I can't have been webing you can't have been webing he can't have been webing we can't have been webing you can't have been webing they can't have been webing
Forma interrogativa
Forma simple
can I web? can you web? can he web? can we web? can you web? can they web?
Forma con V-ing
can I be webing? can you be webing? can he be webing? can we be webing? can you be webing? can they be webing?
Perfecto
can I have webed? can you have webed? can he have webed? can we have webed? can you have webed? can they have webed?
Perfecto con V-ing
can I have been webing? can you have been webing? can he have been webing? can we have been webing? can you have been webing? can they have been webing?
Forma interro-negativa
Forma simple
can't I web? can't you web? can't he web? can't we web? can't you web? can't they web?
Forma con V-ing
can't I be webing? can't you be webing? can't he be webing? can't we be webing? can't you be webing? can't they be webing?
Perfecto
can't I have webed? can't you have webed? can't he have webed? can't we have webed? can't you have webed? can't they have webed?
Perfecto con V-ing
can't I have been webing? can't you have been webing? can't he have been webing? can't we have been webing? can't you have been webing? can't they have been webing?