I could tambour you could tambour he could tambour we could tambour you could tambour they could tambour
Forma con V-ing
I could be tambouring you could be tambouring he could be tambouring we could be tambouring you could be tambouring they could be tambouring
Perfecto
I could have tamboured you could have tamboured he could have tamboured we could have tamboured you could have tamboured they could have tamboured
Perfecto con V-ing
I could have been tambouring you could have been tambouring he could have been tambouring we could have been tambouring you could have been tambouring they could have been tambouring
Negación
Forma simple
I could not tambour you could not tambour he could not tambour we could not tambour you could not tambour they could not tambour
Forma con V-ing
I could not be tambouring you could not be tambouring he could not be tambouring we could not be tambouring you could not be tambouring they could not be tambouring
Perfecto
I could not have tamboured you could not have tamboured he could not have tamboured we could not have tamboured you could not have tamboured they could not have tamboured
Perfecto con V-ing
I could not have been tambouring you could not have been tambouring he could not have been tambouring we could not have been tambouring you could not have been tambouring they could not have been tambouring
Forma interrogativa
Forma simple
could I tambour? could you tambour? could he tambour? could we tambour? could you tambour? could they tambour?
Forma con V-ing
could I be tambouring? could you be tambouring? could he be tambouring? could we be tambouring? could you be tambouring? could they be tambouring?
Perfecto
could I have tamboured? could you have tamboured? could he have tamboured? could we have tamboured? could you have tamboured? could they have tamboured?
Perfecto con V-ing
could I have been tambouring? could you have been tambouring? could he have been tambouring? could we have been tambouring? could you have been tambouring? could they have been tambouring?
Forma interro-negativa
Forma simple
could I not tambour? could you not tambour? could he not tambour? could we not tambour? could you not tambour? could they not tambour?
Forma con V-ing
could I not be tambouring? could you not be tambouring? could he not be tambouring? could we not be tambouring? could you not be tambouring? could they not be tambouring?
Perfecto
could I not have tamboured? could you not have tamboured? could he not have tamboured? could we not have tamboured? could you not have tamboured? could they not have tamboured?
Perfecto con V-ing
could I not have been tambouring? could you not have been tambouring? could he not have been tambouring? could we not have been tambouring? could you not have been tambouring? could they not have been tambouring?