Conjugación del verbo inglés
COULD GROUND

Verbo regular: ground - grounded - grounded

Afirmación

Forma simple	Forma con V-ing
I could ground you could ground he could ground we could ground you could ground they could ground	I could be grounding you could be grounding he could be grounding we could be grounding you could be grounding they could be grounding
Perfecto	Perfecto con V-ing
I could have grounded you could have grounded he could have grounded we could have grounded you could have grounded they could have grounded	I could have been grounding you could have been grounding he could have been grounding we could have been grounding you could have been grounding they could have been grounding

Negación

Forma simple	Forma con V-ing
I could not ground you could not ground he could not ground we could not ground you could not ground they could not ground	I could not be grounding you could not be grounding he could not be grounding we could not be grounding you could not be grounding they could not be grounding
Perfecto	Perfecto con V-ing
I could not have grounded you could not have grounded he could not have grounded we could not have grounded you could not have grounded they could not have grounded	I could not have been grounding you could not have been grounding he could not have been grounding we could not have been grounding you could not have been grounding they could not have been grounding

Forma interrogativa

Forma simple	Forma con V-ing
could I ground? could you ground? could he ground? could we ground? could you ground? could they ground?	could I be grounding? could you be grounding? could he be grounding? could we be grounding? could you be grounding? could they be grounding?
Perfecto	Perfecto con V-ing
could I have grounded? could you have grounded? could he have grounded? could we have grounded? could you have grounded? could they have grounded?	could I have been grounding? could you have been grounding? could he have been grounding? could we have been grounding? could you have been grounding? could they have been grounding?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not ground? could you not ground? could he not ground? could we not ground? could you not ground? could they not ground?	could I not be grounding? could you not be grounding? could he not be grounding? could we not be grounding? could you not be grounding? could they not be grounding?
Perfecto	Perfecto con V-ing
could I not have grounded? could you not have grounded? could he not have grounded? could we not have grounded? could you not have grounded? could they not have grounded?	could I not have been grounding? could you not have been grounding? could he not have been grounding? could we not have been grounding? could you not have been grounding? could they not have been grounding?