A PLURAL IS WHEN YOU PUT AN S ON THE END TO MAKE MORE THEN ONE

SHOE END IN E SO YOU PUT A STRAIGHT S

CITY HAS A Y AND A CONSONANT BEFORE IT SO IT IS IES.

ANYTHING THAT ENDS IN CH OR SH YOU PUT ES

JOCKEY HAS A VOWEL BEFORE THE Y IT SO YOU PUT A STRAIGHT S

POPPY HAS A CONSONANT BEFORE THE Y SO YOU PUT IES

WITCH ENDS WITH A CH SO YOU PUT ES

SHOP ENDS IN A P SO YOU PUT A STRAIGHT S

SERENA