Verbos to be: empareja las formasVersión en línea Empareja cada forma de 'to be' con su grupo correcto. por Eliane Rizo Flores 1 Presente afirmativo 2 Presente negativo 3 Pasado afirmativo 4 Pasado negativo 5 Formas interrogativas am is are be being am not isn't aren't is not are not was were been had been being wasn't weren't was not were not am I? are you? is he? was it? were they?
Crear