I like red cars.

I have two big dogs.

The English are polite people.

Caroline wore a long, black dress.

My building has ten floors.
I live in a ten-floor building.

This job requires two people.
It is a two-person job.

My son is nine years old.
I have a nine-year-old son.

The flight from Rio to London is 12 hours.
It’s a twelve-hour flight.