Every parent knows she toilet-trains her toddler with patience and consistency.

During rush hour, tube trains are packed with commuters heading downtown.

Even after service reductions, parliamentary trains still run on little-used branch lines to satisfy legal obligations.

City planners discussed how tram-trains could improve suburban connectivity during the meeting.

The block trains carrying coal to the port were given priority on the single-track line.

During the festival, accommodation trains were parked near the station to host visiting performers.

The schedule shows that goods trains often run slower than passenger services.

Freight trains rumbled through the valley all night, delivering goods to distant factories.

During the meeting, several different trains of thought emerged, each suggesting a unique approach to the problem.

During the late-night study session, my trains of thoughts kept jumping from physics problems to grocery lists.