I can krass you can krass he can krass we can krass you can krass they can krass
Forma con V-ing
I can be krassing you can be krassing he can be krassing we can be krassing you can be krassing they can be krassing
Perfecto
I can have krassed you can have krassed he can have krassed we can have krassed you can have krassed they can have krassed
Perfecto con V-ing
I can have been krassing you can have been krassing he can have been krassing we can have been krassing you can have been krassing they can have been krassing
Negación
Forma simple
I cannot krass you cannot krass he cannot krass we cannot krass you cannot krass they cannot krass
Forma con V-ing
I cannot be krassing you cannot be krassing he cannot be krassing we cannot be krassing you cannot be krassing they cannot be krassing
Perfecto
I cannot have krassed you cannot have krassed he cannot have krassed we cannot have krassed you cannot have krassed they cannot have krassed
Perfecto con V-ing
I cannot have been krassing you cannot have been krassing he cannot have been krassing we cannot have been krassing you cannot have been krassing they cannot have been krassing
Forma interrogativa
Forma simple
can I krass? can you krass? can he krass? can we krass? can you krass? can they krass?
Forma con V-ing
can I be krassing? can you be krassing? can he be krassing? can we be krassing? can you be krassing? can they be krassing?
Perfecto
can I have krassed? can you have krassed? can he have krassed? can we have krassed? can you have krassed? can they have krassed?
Perfecto con V-ing
can I have been krassing? can you have been krassing? can he have been krassing? can we have been krassing? can you have been krassing? can they have been krassing?
Forma interro-negativa
Forma simple
can I not krass? can you not krass? can he not krass? can we not krass? can you not krass? can they not krass?
Forma con V-ing
can I not be krassing? can you not be krassing? can he not be krassing? can we not be krassing? can you not be krassing? can they not be krassing?
Perfecto
can I not have krassed? can you not have krassed? can he not have krassed? can we not have krassed? can you not have krassed? can they not have krassed?
Perfecto con V-ing
can I not have been krassing? can you not have been krassing? can he not have been krassing? can we not have been krassing? can you not have been krassing? can they not have been krassing?