пока / как только

Temporal Subordination

Level 3Sounds Like poka / kak tolʹko

Пока (while/as long as) describes two things happening at the same time. Пока... не (until) marks a time limit. Как только (as soon as) marks the exact moment one action follows another.

How It Works

Temporal conjunctions help organize the flow of time in Russian sentences:

1. Пока (While / As long as):
Used with imperfective verbs to show that two actions are happening simultaneously.
Example: Пока я читал, она спала. (While I was reading, she was sleeping.)

2. Пока (By the time / Until):
When used with a perfective verb (without 'не'), it indicates that an action was completed by a certain point. In colloquial speech, this is also a common way to say 'until'.
Example: Пока я прочитал книгу, все уже ушли. (By the time I finished the book, everyone had already left.) / Подожди, пока он придёт. (Wait until he arrives - colloquial).

3. Пока... не (Until / Before):
This structure indicates the boundary of an action. It usually requires a perfective verb.
• Until: Жди, пока он не придёт. (Wait until he arrives.) Note that 'не' is a grammatical marker here, not a literal negation.
• Before: Сделай это, пока он не ушёл. (Do it before he leaves/goes away).

4. Как только (As soon as):
Indicates that the main action starts immediately after the subordinate action. Use a perfective verb for single completed actions. However, use an imperfective verb if describing a habitual or repeated sequence.
Example (Single): Как только я приду, я позвоню. (As soon as I arrive, I will call.)
Example (Habitual): Как только он приходит, он сразу садится за стол. (As soon as he arrives, he immediately sits at the table.)

Important Tense Rule: In Russian, you must use the future tense in these clauses if the event is in the future: 'Когда он придёт (future), я уйду.'

Examples (5)

  1. Пока дети играли, мама готовила обед.

    While the children were playing, mom was cooking lunch.

    Word by Word: While children played, mom prepared lunch.

    Uses 'пока' with imperfective verbs to show two ongoing simultaneous actions.

  2. Мы не начнём собрание, пока директор не приедет.

    We won't start the meeting until the director arrives.

    Word by Word: We not will-start meeting, until director not will-arrive.

    Uses 'пока... не' with a perfective future verb to indicate a time limit in the future.

  3. Как только я получу визу, я куплю билеты.

    As soon as I receive the visa, I will buy the tickets.

    Word by Word: As soon as I will-receive visa, I will-buy tickets.

    Uses 'как только' with a perfective future verb to show immediate succession of events.

  4. Пока ты здесь, помоги мне, пожалуйста.

    While you are here, help me, please.

    Word by Word: While you here, help me, please.

    'Пока' can also be used with state descriptions (like 'here') to mean 'as long as'.

  5. Как только солнце зашло, стало холодно.

    As soon as the sun went down, it became cold.

    Word by Word: As soon as sun went-down, it-became cold.

    Demonstrates 'как только' in the past tense with perfective verbs.

Common Mistakes

  • Using present tense for future time clauses.

    Как только он приходит, мы пойдём гулять.
    Как только он придёт, мы пойдём гулять.

    In Russian, if the event is in the future, the verb in the 'как только' or 'пока' clause must be in the future tense, unlike English which often uses the present.

  • Mixing up 'пока' and 'пока не'.

    Different MeaningЯ не уйду, пока он работает.
    Я не уйду, пока он не закончит работать.

    The sentence is correct: I will not leave as long as he is working. 'Пока он не закончит' means I will not leave until he has finished.

  • Thinking 'пока не' only means 'until'.

    Сделай это, пока он уйдёт.
    Сделай это, пока он не ушёл.

    To express 'before' something happens (to prevent it or finish before it), Russian uses 'пока не' with a perfective verb. Without 'не', the meaning changes significantly.

How It Connects

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пока / как толькоLevel 3Temporal Subordination

Learn This First

To learn 'пока' and 'как только', learners must already understand how Russian handles temporal subordination (specifically with 'когда') and be comfortable using perfective and future verb forms to describe the sequence of events.

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Words in This Pattern

покакак только