1.   Caltrain runs commuter trains to both destinations and to other Silicon Valley cities, culminating in San Francisco.

2.   Caltrain runs commuter trains to San Jose.

3.   Each region has one organization controlling buses and operating its commuter trains.

4.   Priority projects are double-Decker commuter trains and more money for the West Coast line.

5.   Several commuter trains were delayed because of the bad weather.

6.   The cab control car of a commuter train being pushed from the rear collided head-on with an Amtrak diesel locomotive.

7.   Today the manager of personnel makes a point of sitting next to his old friend on the daily commuter train.

8.   She accidentally stepped on his foot on a crowded commuter train.

9.   ...a commuter train.

10.   I get a season ticket for the commuter train from my employer.