b.THE FISH ........FLUING ,THEY 'RE SWIMMING.
THE FISH ISN'T FLUING ,THEY'RE SWIMMING
c.SARAH.....WRITING A MESSAGE TO HER MOTHER.
SARAH AREN'T WRITING A MESSAGE TO HER MOTHER
d.BEN AND I......RIDING OUR BIKES NOW.
BEN AND I 'M NOT RIDING OIR BIKES NOW.
e.MY MOTHER AND FATHER.....DRIVING THE CAR.
MY MOTHER AND FATHER ARENT'T DRIVING THE CAR
