Expressing Time Relations: Before, After, While, Until | Russian Grammar

To say "before," "after," "while," or "until" in Russian, you first decide what comes after it. If it's a noun ("after lunch," "before the trip"), you use a preposition and put the noun in the case that preposition governs. If it's a whole event with its own subject and verb ("after he left," "before I go"), you use a multi-word conjunction and follow it with a clause. English blurs this — "before" is "before" whether followed by bed or I go — so the core skill on this page is learning to spot the phrase-vs-clause fork and pick the matching tool. Every temporal relation below is laid out as a pair.

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The pattern is mechanical: the clause conjunctions are built from the prepositions by adding тем / того́ + как. пе́ред → пе́ред тем как; по́сле → по́сле того́ как. The тем / того́ is literally a frozen pointer (the same то you meet in correlative constructions) in the case the preposition demands — пе́ред takes instrumental (тем), по́сле takes genitive (того́).

BEFORE — до / пе́ред (phrase) vs пе́ред тем как (clause)

There are two "before" prepositions, and they are not interchangeable. до + genitive means "prior to, up to" a point — it spans the whole interval before. пе́ред + instrumental means "immediately before, just ahead of" — it points at the moment right before. For a clause, the standard conjunction is пе́ред тем как (sometimes до того́ как for "before, at any point earlier").

Дава́й встре́тимся до обе́да.

Let's meet before lunch. (до + genitive обе́да — any time in the pre-lunch interval)

Пе́ред сном я всегда́ чита́ю.

I always read before bed. (пе́ред + instrumental сном — the moment right before sleeping)

Пе́ред тем как уйти́, вы́ключи свет.

Before leaving, turn off the light. (пе́ред тем как + infinitive — same subject, so an infinitive is natural)

Пе́ред тем как я уйду́, я тебе́ позвоню́.

Before I leave, I'll call you. (пе́ред тем как + clause — explicit subject and finite verb)

When the subject of both clauses is the same, пе́ред тем как + infinitive is the smoothest choice (пе́ред тем как уйти́). When the subjects differ, you need a full finite clause (пе́ред тем как я уйду́).

AFTER — по́сле (phrase) vs по́сле того́ как (clause)

Cleaner than "before," because there's only one preposition. по́сле + genitive for a noun; по́сле того́ как + clause for an event.

По́сле уро́ка мы пошли́ в кафе́.

After the lesson we went to a cafe. (по́сле + genitive уро́ка)

По́сле того́ как он ушёл, ста́ло ти́хо.

After he left, it went quiet. (по́сле того́ как + clause — note the comma before the conjunction when it's fronted)

Я позвоню́ тебе́ по́сле того́, как поговорю́ с ним.

I'll call you after I talk to him. (по́сле того́, как — the того́ can take a comma before как when the clause follows)

A subtlety of aspect: in "after X happened," the verb in the по́сле того́ как clause is usually perfective (он ушёл, поговорю́), because it names a completed event whose endpoint is the reference point for the next action. See aspect with time words.

WHILE — во вре́мя (phrase) vs пока́ (clause)

"While" splits the same way. во вре́мя + genitive ("during") for a noun; пока́ + clause ("while, as long as") for an ongoing event. The verb after пока́ in this meaning is typically imperfective, because two processes are running in parallel.

Во вре́мя ле́кции он засну́л.

He fell asleep during the lecture. (во вре́мя + genitive ле́кции)

Пока́ ма́ма гото́вила, де́ти игра́ли.

While mum was cooking, the kids were playing. (пока́ + imperfective — two parallel processes)

Чита́й кни́гу, пока́ есть вре́мя.

Read the book while there's time. (пока́ = 'as long as / while there still is')

UNTIL — до (phrase) vs пока́ не (clause)

Here is the famous trap. "Until" as a clause is пока́ не + a verb — and that не is not a negation. It is an old idiomatic particle meaning roughly "up to the point that"; the verb after it is positive in meaning. The phrase version is до + genitive.

Я подожду́ до ве́чера.

I'll wait until evening. (до + genitive ве́чера — phrase)

Подожди́, пока́ я не верну́сь.

Wait until I get back. (пока́ не + perfective — the не does NOT make it negative)

Мы не уйдём, пока́ не зако́нчим рабо́ту.

We won't leave until we finish the work. (пока́ не зако́нчим — 'until we finish', positive in meaning)

The verb after пока́ не is normally perfective (верну́сь, зако́нчим), because "until" looks forward to a completed endpoint. Contrast it with plain пока́ ("while," imperfective, parallel) — the same conjunction, but не flips it from "while X is happening" to "until X happens."

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Do not translate the не in пока́ не. Жди, пока́ не позвоню́ means "Wait until I call," not "Wait while I don't call." If you mentally insert a real negation you'll mis-time the whole sentence. Treat пока́ не as a single unit = "until."

AS SOON AS — как то́лько

This relation is clause-only; there is no noun-phrase counterpart. как то́лько ("as soon as, the moment that") introduces a clause, and its verb is usually perfective, because it names the trigger event.

Как то́лько я прие́ду, я тебе́ напишу́.

As soon as I arrive, I'll text you. (как то́лько + perfective прие́ду)

Позвони́ мне, как то́лько освободи́шься.

Call me as soon as you're free. (как то́лько освободи́шься)

The phrase-vs-clause grid

The whole system on one screen. Notice how each row pairs a preposition (for nouns) with a conjunction (for clauses):

Relation	PHRASE: prep + noun	CLAUSE: conjunction + verb
before (span)	до + gen. — до обе́да	до того́ как / пе́ред тем как
before (the moment)	пе́ред + instr. — пе́ред сном	пе́ред тем как
after	по́сле + gen. — по́сле уро́ка	по́сле того́ как
while / during	во вре́мя + gen. — во вре́мя ле́кции	пока́ (+ imperfective)
until	до + gen. — до ве́чера	пока́ не (+ perfective)
as soon as	— (no phrase form)	как то́лько (+ perfective)

The choice is governed by what follows, not by the meaning: noun → preposition, clause → conjunction. Many learner errors come from forcing a noun into a clause conjunction (❌ по́сле того́ как обе́д) or a clause into a preposition (❌ по́сле он ушёл). See the broader inventory on temporal clauses and the lighter sequencing words (пото́м, зате́м, снача́ла) on sequence and time words.

How this differs from English

English uses one word across the phrase/clause divide: "before lunch" and "before I go" both use before; "after the war" and "after he won" both use after. The word doesn't change shape, and the noun doesn't change form. Russian forces two decisions English never asks: (1) phrase or clause, which selects the preposition vs the conjunction, and (2) which case the noun goes into (до + genitive, пе́ред + instrumental, во вре́мя + genitive). The English "while" is especially treacherous, because it covers both "during" (во вре́мя / пока́) and the contrastive "whereas" (in Russian а, тогда́ как) — only the temporal sense lives on this page.

Common Mistakes

❌ По́сле он ушёл, ста́ло ти́хо.

Incorrect — a clause needs the conjunction по́сле того́ как, not the bare preposition по́сле.

✅ По́сле того́ как он ушёл, ста́ло ти́хо.

After he left, it went quiet.

❌ Пе́ред тем как обе́д я помы́л ру́ки.

Incorrect — обе́д is a noun, so use the preposition: пе́ред обе́дом (instrumental) or до обе́да.

✅ Пе́ред обе́дом я помы́л ру́ки.

Before lunch I washed my hands.

❌ Подожди́, пока́ я верну́сь.

Incorrect for 'until' — 'until' needs the idiomatic пока́ не. Without не this means 'wait while I come back', the wrong timing.

✅ Подожди́, пока́ я не верну́сь.

Wait until I get back.

❌ До я уйду́, я позвоню́.

Incorrect — до is a preposition (до + genitive noun). For a clause use пе́ред тем как / до того́ как.

✅ Пе́ред тем как я уйду́, я позвоню́.

Before I leave, I'll call.

❌ Я напишу́ тебе́, как то́лько приезжа́ю.

Aspect error — как то́лько points to a trigger event, so it takes the perfective прие́ду, not the imperfective приезжа́ю.

✅ Я напишу́ тебе́, как то́лько прие́ду.

I'll text you as soon as I arrive.

Key Takeaways

Every temporal relation has a phrase form (preposition + noun) and a clause form (conjunction + verb). Choose by what follows.
BEFORE: до + gen. (span) / пе́ред + instr. (the moment) / clause: пе́ред тем как.
AFTER: по́сле + gen. / clause: по́сле того́ как (verb usually perfective).
WHILE: во вре́мя + gen. / clause: пока́ (verb usually imperfective).
UNTIL: до + gen. / clause: пока́ не (the не is not a negation; verb usually perfective).
AS SOON AS: как то́лько (clause only; verb usually perfective).
The clause conjunctions are the prepositions + a frozen pointer: пе́ред тем как (instr.), по́сле того́ как (gen.).

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