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