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