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