I could bull you could bull she could bull we could bull you could bull they could bull
Forma con V-ing
I could be bulling you could be bulling she could be bulling we could be bulling you could be bulling they could be bulling
Perfecto
I could have bulled you could have bulled she could have bulled we could have bulled you could have bulled they could have bulled
Perfecto con V-ing
I could have been bulling you could have been bulling she could have been bulling we could have been bulling you could have been bulling they could have been bulling
Negación
Forma simple
I couldn't bull you couldn't bull she couldn't bull we couldn't bull you couldn't bull they couldn't bull
Forma con V-ing
I couldn't be bulling you couldn't be bulling she couldn't be bulling we couldn't be bulling you couldn't be bulling they couldn't be bulling
Perfecto
I couldn't have bulled you couldn't have bulled she couldn't have bulled we couldn't have bulled you couldn't have bulled they couldn't have bulled
Perfecto con V-ing
I couldn't have been bulling you couldn't have been bulling she couldn't have been bulling we couldn't have been bulling you couldn't have been bulling they couldn't have been bulling
Forma interrogativa
Forma simple
could I bull? could you bull? could she bull? could we bull? could you bull? could they bull?
Forma con V-ing
could I be bulling? could you be bulling? could she be bulling? could we be bulling? could you be bulling? could they be bulling?
Perfecto
could I have bulled? could you have bulled? could she have bulled? could we have bulled? could you have bulled? could they have bulled?
Perfecto con V-ing
could I have been bulling? could you have been bulling? could she have been bulling? could we have been bulling? could you have been bulling? could they have been bulling?
Forma interro-negativa
Forma simple
couldn't I bull? couldn't you bull? couldn't she bull? couldn't we bull? couldn't you bull? couldn't they bull?
Forma con V-ing
couldn't I be bulling? couldn't you be bulling? couldn't she be bulling? couldn't we be bulling? couldn't you be bulling? couldn't they be bulling?
Perfecto
couldn't I have bulled? couldn't you have bulled? couldn't she have bulled? couldn't we have bulled? couldn't you have bulled? couldn't they have bulled?
Perfecto con V-ing
couldn't I have been bulling? couldn't you have been bulling? couldn't she have been bulling? couldn't we have been bulling? couldn't you have been bulling? couldn't they have been bulling?