Когда поезд остановится, подойди к выходу.

when

Breakdown of Когда поезд остановится, подойди к выходу.

• поезд: the train
• выход: the exit
• остановиться: to stop

Questions & Answers about Когда поезд остановится, подойди к выходу.

Why is остановится in the future tense? In English we often say When the train stops, not When the train will stop.

Russian works differently here. After когда referring to the future, Russian normally uses the future tense, not the present.

So Russian says:

• Когда поезд остановится... = When the train stops / has stopped...

Even though English usually uses a present form after when, Russian still uses future because the stopping has not happened yet.

---

What exactly is остановится grammatically?

Остановится is:

• 3rd person singular
• future tense
• from the verb остановиться
• aspect: perfective

So it means it will come to a stop or it will stop.

Here the subject is поезд, so literally: the train will stop.

---

Why is the verb остановиться, with -ся, instead of остановить?