I could yield you could yield she could yield we could yield you could yield they could yield
Forma con V-ing
I could be yielding you could be yielding she could be yielding we could be yielding you could be yielding they could be yielding
Perfecto
I could have yielded you could have yielded she could have yielded we could have yielded you could have yielded they could have yielded
Perfecto con V-ing
I could have been yielding you could have been yielding she could have been yielding we could have been yielding you could have been yielding they could have been yielding
Negación
Forma simple
I could not yield you could not yield she could not yield we could not yield you could not yield they could not yield
Forma con V-ing
I could not be yielding you could not be yielding she could not be yielding we could not be yielding you could not be yielding they could not be yielding
Perfecto
I could not have yielded you could not have yielded she could not have yielded we could not have yielded you could not have yielded they could not have yielded
Perfecto con V-ing
I could not have been yielding you could not have been yielding she could not have been yielding we could not have been yielding you could not have been yielding they could not have been yielding
Forma interrogativa
Forma simple
could I yield? could you yield? could she yield? could we yield? could you yield? could they yield?
Forma con V-ing
could I be yielding? could you be yielding? could she be yielding? could we be yielding? could you be yielding? could they be yielding?
Perfecto
could I have yielded? could you have yielded? could she have yielded? could we have yielded? could you have yielded? could they have yielded?
Perfecto con V-ing
could I have been yielding? could you have been yielding? could she have been yielding? could we have been yielding? could you have been yielding? could they have been yielding?
Forma interro-negativa
Forma simple
could I not yield? could you not yield? could she not yield? could we not yield? could you not yield? could they not yield?
Forma con V-ing
could I not be yielding? could you not be yielding? could she not be yielding? could we not be yielding? could you not be yielding? could they not be yielding?
Perfecto
could I not have yielded? could you not have yielded? could she not have yielded? could we not have yielded? could you not have yielded? could they not have yielded?
Perfecto con V-ing
could I not have been yielding? could you not have been yielding? could she not have been yielding? could we not have been yielding? could you not have been yielding? could they not have been yielding?