I could krass you could krass he could krass we could krass you could krass they could krass
Forma con V-ing
I could be krassing you could be krassing he could be krassing we could be krassing you could be krassing they could be krassing
Perfecto
I could have krassed you could have krassed he could have krassed we could have krassed you could have krassed they could have krassed
Perfecto con V-ing
I could have been krassing you could have been krassing he could have been krassing we could have been krassing you could have been krassing they could have been krassing
Negación
Forma simple
I couldn't krass you couldn't krass he couldn't krass we couldn't krass you couldn't krass they couldn't krass
Forma con V-ing
I couldn't be krassing you couldn't be krassing he couldn't be krassing we couldn't be krassing you couldn't be krassing they couldn't be krassing
Perfecto
I couldn't have krassed you couldn't have krassed he couldn't have krassed we couldn't have krassed you couldn't have krassed they couldn't have krassed
Perfecto con V-ing
I couldn't have been krassing you couldn't have been krassing he couldn't have been krassing we couldn't have been krassing you couldn't have been krassing they couldn't have been krassing
Forma interrogativa
Forma simple
could I krass? could you krass? could he krass? could we krass? could you krass? could they krass?
Forma con V-ing
could I be krassing? could you be krassing? could he be krassing? could we be krassing? could you be krassing? could they be krassing?
Perfecto
could I have krassed? could you have krassed? could he have krassed? could we have krassed? could you have krassed? could they have krassed?
Perfecto con V-ing
could I have been krassing? could you have been krassing? could he have been krassing? could we have been krassing? could you have been krassing? could they have been krassing?
Forma interro-negativa
Forma simple
couldn't I krass? couldn't you krass? couldn't he krass? couldn't we krass? couldn't you krass? couldn't they krass?
Forma con V-ing
couldn't I be krassing? couldn't you be krassing? couldn't he be krassing? couldn't we be krassing? couldn't you be krassing? couldn't they be krassing?
Perfecto
couldn't I have krassed? couldn't you have krassed? couldn't he have krassed? couldn't we have krassed? couldn't you have krassed? couldn't they have krassed?
Perfecto con V-ing
couldn't I have been krassing? couldn't you have been krassing? couldn't he have been krassing? couldn't we have been krassing? couldn't you have been krassing? couldn't they have been krassing?