I could clutch you could clutch he could clutch we could clutch you could clutch they could clutch
Forma con V-ing
I could be clutching you could be clutching he could be clutching we could be clutching you could be clutching they could be clutching
Perfecto
I could have clutched you could have clutched he could have clutched we could have clutched you could have clutched they could have clutched
Perfecto con V-ing
I could have been clutching you could have been clutching he could have been clutching we could have been clutching you could have been clutching they could have been clutching
Negación
Forma simple
I could not clutch you could not clutch he could not clutch we could not clutch you could not clutch they could not clutch
Forma con V-ing
I could not be clutching you could not be clutching he could not be clutching we could not be clutching you could not be clutching they could not be clutching
Perfecto
I could not have clutched you could not have clutched he could not have clutched we could not have clutched you could not have clutched they could not have clutched
Perfecto con V-ing
I could not have been clutching you could not have been clutching he could not have been clutching we could not have been clutching you could not have been clutching they could not have been clutching
Forma interrogativa
Forma simple
could I clutch? could you clutch? could he clutch? could we clutch? could you clutch? could they clutch?
Forma con V-ing
could I be clutching? could you be clutching? could he be clutching? could we be clutching? could you be clutching? could they be clutching?
Perfecto
could I have clutched? could you have clutched? could he have clutched? could we have clutched? could you have clutched? could they have clutched?
Perfecto con V-ing
could I have been clutching? could you have been clutching? could he have been clutching? could we have been clutching? could you have been clutching? could they have been clutching?
Forma interro-negativa
Forma simple
could I not clutch? could you not clutch? could he not clutch? could we not clutch? could you not clutch? could they not clutch?
Forma con V-ing
could I not be clutching? could you not be clutching? could he not be clutching? could we not be clutching? could you not be clutching? could they not be clutching?
Perfecto
could I not have clutched? could you not have clutched? could he not have clutched? could we not have clutched? could you not have clutched? could they not have clutched?
Perfecto con V-ing
could I not have been clutching? could you not have been clutching? could he not have been clutching? could we not have been clutching? could you not have been clutching? could they not have been clutching?