(of time) to elapse; to pass · (of a situation) to develop; to evolve · to shift; to slide; to move smoothly and continuously along a surface

As time goes on, my life gets worse and worse.

As time went on, rules were added to the game to make it safer.

As time goes on, China's economy gets stronger and stronger.

If a natural language can be compared to a tree, which has developed during the course of time, Esperanto can be compared to a plastic tree, which was created artificially.