Conjugación del verbo inglés
COULD SPECULATE

Verbo regular: speculate - speculated - speculated

Afirmación

Forma simple	Forma con V-ing
I could speculate you could speculate he could speculate we could speculate you could speculate they could speculate	I could be speculating you could be speculating he could be speculating we could be speculating you could be speculating they could be speculating
Perfecto	Perfecto con V-ing
I could have speculated you could have speculated he could have speculated we could have speculated you could have speculated they could have speculated	I could have been speculating you could have been speculating he could have been speculating we could have been speculating you could have been speculating they could have been speculating

Negación

Forma simple	Forma con V-ing
I could not speculate you could not speculate he could not speculate we could not speculate you could not speculate they could not speculate	I could not be speculating you could not be speculating he could not be speculating we could not be speculating you could not be speculating they could not be speculating
Perfecto	Perfecto con V-ing
I could not have speculated you could not have speculated he could not have speculated we could not have speculated you could not have speculated they could not have speculated	I could not have been speculating you could not have been speculating he could not have been speculating we could not have been speculating you could not have been speculating they could not have been speculating

Forma interrogativa

Forma simple	Forma con V-ing
could I speculate? could you speculate? could he speculate? could we speculate? could you speculate? could they speculate?	could I be speculating? could you be speculating? could he be speculating? could we be speculating? could you be speculating? could they be speculating?
Perfecto	Perfecto con V-ing
could I have speculated? could you have speculated? could he have speculated? could we have speculated? could you have speculated? could they have speculated?	could I have been speculating? could you have been speculating? could he have been speculating? could we have been speculating? could you have been speculating? could they have been speculating?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not speculate? could you not speculate? could he not speculate? could we not speculate? could you not speculate? could they not speculate?	could I not be speculating? could you not be speculating? could he not be speculating? could we not be speculating? could you not be speculating? could they not be speculating?
Perfecto	Perfecto con V-ing
could I not have speculated? could you not have speculated? could he not have speculated? could we not have speculated? could you not have speculated? could they not have speculated?	could I not have been speculating? could you not have been speculating? could he not have been speculating? could we not have been speculating? could you not have been speculating? could they not have been speculating?