Singular and Plural

Students are always having problems when they should add "s" behind a word.

There is a very simple solution to this problem

For nouns, words like chair, table, pen, pencil, book
- students should apply this formula (1 -s) (>1 +s)

Example:
Chair (1) = No "s"
3 Chairs (>1) = Add "s"


For verbs, words like run, eat, swim
- students should apply this formula instead (1+s) (>1- s)

Example:
She(1) runs = Add "s"
Jane (1)swims = Add "s"

They (>1) run = No "s"
Peter and Jane swims (>1) = No "s"