Questions & Answers about Включи таймер на пять минут и дыши глубоко.
Because the sentence is giving two commands to the same person (informal ты):
- включи = “turn on / start” (a one-time action)
- дыши = “breathe” (an ongoing action)
They’re joined by и (“and”), so it’s basically “Do X, and do Y.”
This is an aspect choice:
- включи (perfective, from включить) focuses on completing the action once: “turn it on (now).”
- включай (imperfective, from включать) can sound like “start turning it on / turn it on (as a process)” or “turn it on (habitually/whenever).”
For a single, immediate instruction, включи is the most natural.
Russian commonly uses включить with devices and functions: “switch on / start.” With timers, you’ll also hear:
- поставь таймер на пять минут = “set a timer for five minutes” (very common)
- запусти таймер = “start the timer”
So включи таймер is understandable and natural, even if English prefers “set.”