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