example: a pen - many pens
a box - many boxes
a child - many children
a man - many men
a family - many families
a boy - many boys
a desk - many desks
a candy - many candies
a toy - many toys
a mouse - many mice
a bus - many buses
a wolf - many wolves
a cat - many cats
a leaf - many leaves
example: a pen - many pens
a box - many boxes
a child - many children
a man - many men
a family - many families
a boy - many boys
a desk - many desks
a candy - many candies
a toy - many toys
a mouse - many mice
a bus - many buses
a wolf - many wolves
a cat - many cats
a leaf - many leaves