I could buck you could buck he could buck we could buck you could buck they could buck
Forma con V-ing
I could be bucking you could be bucking he could be bucking we could be bucking you could be bucking they could be bucking
Perfecto
I could have bucked you could have bucked he could have bucked we could have bucked you could have bucked they could have bucked
Perfecto con V-ing
I could have been bucking you could have been bucking he could have been bucking we could have been bucking you could have been bucking they could have been bucking
Negación
Forma simple
I could not buck you could not buck he could not buck we could not buck you could not buck they could not buck
Forma con V-ing
I could not be bucking you could not be bucking he could not be bucking we could not be bucking you could not be bucking they could not be bucking
Perfecto
I could not have bucked you could not have bucked he could not have bucked we could not have bucked you could not have bucked they could not have bucked
Perfecto con V-ing
I could not have been bucking you could not have been bucking he could not have been bucking we could not have been bucking you could not have been bucking they could not have been bucking
Forma interrogativa
Forma simple
could I buck? could you buck? could he buck? could we buck? could you buck? could they buck?
Forma con V-ing
could I be bucking? could you be bucking? could he be bucking? could we be bucking? could you be bucking? could they be bucking?
Perfecto
could I have bucked? could you have bucked? could he have bucked? could we have bucked? could you have bucked? could they have bucked?
Perfecto con V-ing
could I have been bucking? could you have been bucking? could he have been bucking? could we have been bucking? could you have been bucking? could they have been bucking?
Forma interro-negativa
Forma simple
could I not buck? could you not buck? could he not buck? could we not buck? could you not buck? could they not buck?
Forma con V-ing
could I not be bucking? could you not be bucking? could he not be bucking? could we not be bucking? could you not be bucking? could they not be bucking?
Perfecto
could I not have bucked? could you not have bucked? could he not have bucked? could we not have bucked? could you not have bucked? could they not have bucked?
Perfecto con V-ing
could I not have been bucking? could you not have been bucking? could he not have been bucking? could we not have been bucking? could you not have been bucking? could they not have been bucking?