1. he is a taxi driver. he rides taxi. it’s not really a well-paid job.
2. she is a bus driver. she rides bus. it’s a hard job to ride a bug bus.
3. he is a sailor. he sails on his ship. it’s an uncommon job.
4. he is a train driver. he rides train. it’s a hard job to ride a train.
5. he is a bicycle driver. he rides a bike. it’s not very hard to learn to ride a bike.