Conjugación del verbo inglés
COULD MASS

Verbo regular: mass - massed - massed

Afirmación

Forma simple	Forma con V-ing
I could mass you could mass she could mass we could mass you could mass they could mass	I could be massing you could be massing she could be massing we could be massing you could be massing they could be massing
Perfecto	Perfecto con V-ing
I could have massed you could have massed she could have massed we could have massed you could have massed they could have massed	I could have been massing you could have been massing she could have been massing we could have been massing you could have been massing they could have been massing

Negación

Forma simple	Forma con V-ing
I could not mass you could not mass she could not mass we could not mass you could not mass they could not mass	I could not be massing you could not be massing she could not be massing we could not be massing you could not be massing they could not be massing
Perfecto	Perfecto con V-ing
I could not have massed you could not have massed she could not have massed we could not have massed you could not have massed they could not have massed	I could not have been massing you could not have been massing she could not have been massing we could not have been massing you could not have been massing they could not have been massing

Forma interrogativa

Forma simple	Forma con V-ing
could I mass? could you mass? could she mass? could we mass? could you mass? could they mass?	could I be massing? could you be massing? could she be massing? could we be massing? could you be massing? could they be massing?
Perfecto	Perfecto con V-ing
could I have massed? could you have massed? could she have massed? could we have massed? could you have massed? could they have massed?	could I have been massing? could you have been massing? could she have been massing? could we have been massing? could you have been massing? could they have been massing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not mass? could you not mass? could she not mass? could we not mass? could you not mass? could they not mass?	could I not be massing? could you not be massing? could she not be massing? could we not be massing? could you not be massing? could they not be massing?
Perfecto	Perfecto con V-ing
could I not have massed? could you not have massed? could she not have massed? could we not have massed? could you not have massed? could they not have massed?	could I not have been massing? could you not have been massing? could she not have been massing? could we not have been massing? could you not have been massing? could they not have been massing?