Oraciones Afirmativas

ELABORA 3 ORACIONES AFIRMATIVAS UTILIZANDO AUXILIAR COULD Y CAMBIALAS A LAS FORMAS NEGATIVAS E INTERROGATIVAS.

A= i have finished my homework
N=has Frank visited eduardo
I= she has not had a cold?

A=darla has visited  maria
N=has he studied very much for algebra
I=i have not acted good?

A=i have cooked a pizza
N=has he killled animals
I=she has not liker eat carrot?