Conjugación del verbo inglés
COULD FROTH

Verbo regular: froth - frothed - frothed

Afirmación

Forma simple	Forma con V-ing
I could froth you could froth she could froth we could froth you could froth they could froth	I could be frothing you could be frothing she could be frothing we could be frothing you could be frothing they could be frothing
Perfecto	Perfecto con V-ing
I could have frothed you could have frothed she could have frothed we could have frothed you could have frothed they could have frothed	I could have been frothing you could have been frothing she could have been frothing we could have been frothing you could have been frothing they could have been frothing

Negación

Forma simple	Forma con V-ing
I could not froth you could not froth she could not froth we could not froth you could not froth they could not froth	I could not be frothing you could not be frothing she could not be frothing we could not be frothing you could not be frothing they could not be frothing
Perfecto	Perfecto con V-ing
I could not have frothed you could not have frothed she could not have frothed we could not have frothed you could not have frothed they could not have frothed	I could not have been frothing you could not have been frothing she could not have been frothing we could not have been frothing you could not have been frothing they could not have been frothing

Forma interrogativa

Forma simple	Forma con V-ing
could I froth? could you froth? could she froth? could we froth? could you froth? could they froth?	could I be frothing? could you be frothing? could she be frothing? could we be frothing? could you be frothing? could they be frothing?
Perfecto	Perfecto con V-ing
could I have frothed? could you have frothed? could she have frothed? could we have frothed? could you have frothed? could they have frothed?	could I have been frothing? could you have been frothing? could she have been frothing? could we have been frothing? could you have been frothing? could they have been frothing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not froth? could you not froth? could she not froth? could we not froth? could you not froth? could they not froth?	could I not be frothing? could you not be frothing? could she not be frothing? could we not be frothing? could you not be frothing? could they not be frothing?
Perfecto	Perfecto con V-ing
could I not have frothed? could you not have frothed? could she not have frothed? could we not have frothed? could you not have frothed? could they not have frothed?	could I not have been frothing? could you not have been frothing? could she not have been frothing? could we not have been frothing? could you not have been frothing? could they not have been frothing?