пролетают

In a sentence

• Птицы пролетают над рекой.

  Birds are flying over the river.

  Here, 'пролетают' is used to describe the motion of birds as they fly over a location, indicating a directional passage.

• Дни пролетают незаметно.

  Days fly by unnoticed.

  In this context, 'пролетают' metaphorically describes the passage of time, emphasizing its quick and unnoticed progression.

• Самолёт пролетают в небе.

  The airplane is flying in the sky.

  Here, 'пролетают' refers to the airplane moving across the sky, illustrating a similar directional passage as in the first example.