I could sting you could sting he could sting we could sting you could sting they could sting
Forma con V-ing
I could be stinging you could be stinging he could be stinging we could be stinging you could be stinging they could be stinging
Perfecto
I could have stung you could have stung he could have stung we could have stung you could have stung they could have stung
Perfecto con V-ing
I could have been stinging you could have been stinging he could have been stinging we could have been stinging you could have been stinging they could have been stinging
Negación
Forma simple
I could not sting you could not sting he could not sting we could not sting you could not sting they could not sting
Forma con V-ing
I could not be stinging you could not be stinging he could not be stinging we could not be stinging you could not be stinging they could not be stinging
Perfecto
I could not have stung you could not have stung he could not have stung we could not have stung you could not have stung they could not have stung
Perfecto con V-ing
I could not have been stinging you could not have been stinging he could not have been stinging we could not have been stinging you could not have been stinging they could not have been stinging
Forma interrogativa
Forma simple
could I sting? could you sting? could he sting? could we sting? could you sting? could they sting?
Forma con V-ing
could I be stinging? could you be stinging? could he be stinging? could we be stinging? could you be stinging? could they be stinging?
Perfecto
could I have stung? could you have stung? could he have stung? could we have stung? could you have stung? could they have stung?
Perfecto con V-ing
could I have been stinging? could you have been stinging? could he have been stinging? could we have been stinging? could you have been stinging? could they have been stinging?
Forma interro-negativa
Forma simple
could I not sting? could you not sting? could he not sting? could we not sting? could you not sting? could they not sting?
Forma con V-ing
could I not be stinging? could you not be stinging? could he not be stinging? could we not be stinging? could you not be stinging? could they not be stinging?
Perfecto
could I not have stung? could you not have stung? could he not have stung? could we not have stung? could you not have stung? could they not have stung?
Perfecto con V-ing
could I not have been stinging? could you not have been stinging? could he not have been stinging? could we not have been stinging? could you not have been stinging? could they not have been stinging?