Conjugación del verbo inglés
COULD SINGE

Verbo regular: singe - singed - singed

Afirmación

Forma simple	Forma con V-ing
I could singe you could singe he could singe we could singe you could singe they could singe	I could be singing you could be singing he could be singing we could be singing you could be singing they could be singing
Perfecto	Perfecto con V-ing
I could have singed you could have singed he could have singed we could have singed you could have singed they could have singed	I could have been singing you could have been singing he could have been singing we could have been singing you could have been singing they could have been singing

Negación

Forma simple	Forma con V-ing
I could not singe you could not singe he could not singe we could not singe you could not singe they could not singe	I could not be singing you could not be singing he could not be singing we could not be singing you could not be singing they could not be singing
Perfecto	Perfecto con V-ing
I could not have singed you could not have singed he could not have singed we could not have singed you could not have singed they could not have singed	I could not have been singing you could not have been singing he could not have been singing we could not have been singing you could not have been singing they could not have been singing

Forma interrogativa

Forma simple	Forma con V-ing
could I singe? could you singe? could he singe? could we singe? could you singe? could they singe?	could I be singing? could you be singing? could he be singing? could we be singing? could you be singing? could they be singing?
Perfecto	Perfecto con V-ing
could I have singed? could you have singed? could he have singed? could we have singed? could you have singed? could they have singed?	could I have been singing? could you have been singing? could he have been singing? could we have been singing? could you have been singing? could they have been singing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not singe? could you not singe? could he not singe? could we not singe? could you not singe? could they not singe?	could I not be singing? could you not be singing? could he not be singing? could we not be singing? could you not be singing? could they not be singing?
Perfecto	Perfecto con V-ing
could I not have singed? could you not have singed? could he not have singed? could we not have singed? could you not have singed? could they not have singed?	could I not have been singing? could you not have been singing? could he not have been singing? could we not have been singing? could you not have been singing? could they not have been singing?