1. Compound nouns can be made with two nouns:
ex : Let’s just wait at this bus stop.
2. Compound nouns can be made with an adjective and a noun:
ex : Let’s watch the full moon come up over the mountain.
3. Compound nouns can be made with a verb and a noun:
ex : Be sure to add bleach to the washing machine.
4. Compound nouns can be made with a noun and a verb:
ex : He always gets up before sunrise.