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1. build > builder
A builder builds houses.
2. drum > drummer
A drummer plays the drums.
3. sail > sailor
A sailor sails the seas and oceans to discover new lands.
4. drive > driver
A driver drives the car to take people from a place to the another.
5. sing > singer
A singer sing in recording studios.
6. conduct > conductor
A conductor conducts a musical orchestral concert.
7. dive > diver
A diver dives in the sea or in the ocean to explore lost ships.
8. report > reporter
A reporter presents reports on the information in various fields.