Some nouns are special, so we can't just add s to make them plural.
We need to add es to nouns that end with s, x, ch, or sh to make it plural.
![grammar1](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL120Kids/unit01/Grammar%201-4/1-4g1.jpg)
Some students take the bus to school.
There are many buses that take students to school.
![grammar2](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL120Kids/unit01/Grammar%201-4/1-4g2.jpg)
That box is heavy.
Those boxes are heavy.
![grammar3](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL120Kids/unit01/Grammar%201-4/1-4g3.jpg)
We use a brush to paint.
We use many brushes to paint.
![grammar4](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL120Kids/unit01/Grammar%201-4/1-4g4.jpg)
This tree has one branch.
This tree has many branches.