I can fumble you can fumble he can fumble we can fumble you can fumble they can fumble
Forma con V-ing
I can be fumbling you can be fumbling he can be fumbling we can be fumbling you can be fumbling they can be fumbling
Perfecto
I can have fumbled you can have fumbled he can have fumbled we can have fumbled you can have fumbled they can have fumbled
Perfecto con V-ing
I can have been fumbling you can have been fumbling he can have been fumbling we can have been fumbling you can have been fumbling they can have been fumbling
Negación
Forma simple
I can't fumble you can't fumble he can't fumble we can't fumble you can't fumble they can't fumble
Forma con V-ing
I can't be fumbling you can't be fumbling he can't be fumbling we can't be fumbling you can't be fumbling they can't be fumbling
Perfecto
I can't have fumbled you can't have fumbled he can't have fumbled we can't have fumbled you can't have fumbled they can't have fumbled
Perfecto con V-ing
I can't have been fumbling you can't have been fumbling he can't have been fumbling we can't have been fumbling you can't have been fumbling they can't have been fumbling
Forma interrogativa
Forma simple
can I fumble? can you fumble? can he fumble? can we fumble? can you fumble? can they fumble?
Forma con V-ing
can I be fumbling? can you be fumbling? can he be fumbling? can we be fumbling? can you be fumbling? can they be fumbling?
Perfecto
can I have fumbled? can you have fumbled? can he have fumbled? can we have fumbled? can you have fumbled? can they have fumbled?
Perfecto con V-ing
can I have been fumbling? can you have been fumbling? can he have been fumbling? can we have been fumbling? can you have been fumbling? can they have been fumbling?
Forma interro-negativa
Forma simple
can't I fumble? can't you fumble? can't he fumble? can't we fumble? can't you fumble? can't they fumble?
Forma con V-ing
can't I be fumbling? can't you be fumbling? can't he be fumbling? can't we be fumbling? can't you be fumbling? can't they be fumbling?
Perfecto
can't I have fumbled? can't you have fumbled? can't he have fumbled? can't we have fumbled? can't you have fumbled? can't they have fumbled?
Perfecto con V-ing
can't I have been fumbling? can't you have been fumbling? can't he have been fumbling? can't we have been fumbling? can't you have been fumbling? can't they have been fumbling?