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