I ____ not the Math teacher.
I’M not the Math teacher. / I AM not the Math teacher.
She ____ my sister.
She ISN’T my sister.
They ____ Italians.
They AREN’T Italians.
The dog ____ aggressive.
The dog ISN’T aggressive.
Benjamin ____ American.
Benjamin ISN’T American.
Marie and François ____ from here.
Marie and François AREN’T from here.
The school ____ opened.
The school ISN’T opened.
My friends ____ here.
My friends AREN’T here.
Mary ____ tired.
Mary ISN’T tired.
Roger and Denis ____ late.
Roger and Denis AREN’T late.