ש־: The Universal Subordinator | Hebrew Grammar

English needs four words to hook one clause onto another — that, which, who, when — and picks between them by what the clause is doing. Hebrew has one letter, and it does not care. ש־ glues a clause to a verb, to a noun, to a date, to anything. Learn where it goes once and a whole layer of the language opens at the same time, because ש־ is also the component that builds most of Hebrew's subordinating connectives.

One prefix, three jobs

After a verb, ש־ opens a complement clause — the what of saying, thinking, hearing, promising.

כתבתי להם שאני מגיע, ועדיין לא ענו לי.

katávti lahém she'aní magía, va'adáyin lo anú li

I wrote to them that I'm coming and they still haven't replied.

נראה לי שהחנות סגורה היום, יש שלט על הדלת.

nir'é li shehakhanút sgurá hayóm, yesh shélet al hadélet

I get the impression the shop's shut today — there's a sign on the door.

After a noun, the identical prefix opens a relative clause, covering English who, whom, which and that in one stroke.

החבר שהמליץ לי על הסרט חייב לי עכשיו הסבר.

hekhavér shehimlíts li al haséret khayáv li akhsháv hesbér

The friend who recommended the film to me now owes me an explanation.

התיק שקניתי בשוק כבר נקרע.

hatík shekaníti bashúk kvar nikrá

The bag I bought at the market has already torn.

After a time noun, the same prefix again — and this is where English switches to when, which makes the Hebrew look like a different construction when it is not. ביום ש, בשנה ש, בשבוע ש, ברגע ש: the clause is attributive to the noun, exactly as in the pair above.

ביום שהגענו לירושלים ירד שלג.

bayóm shehigánu lirushaláyim yarád shéleg

It snowed on the day we got to Jerusalem.

בשנה שעברנו לחיפה עוד לא היה לנו רכב.

bashaná she'avárnu lekhéifa od lo hayá lánu rékhev

The year we moved to Haifa we still didn't have a car.

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Do not file these as three items to memorise. They are one item — a clause with ש־ in front of it — and what changes is only what the clause is hanging on. Treating the complementiser and the relativiser as a single prefix rather than as two homonyms is the moment Hebrew subordination stops feeling arbitrary. The relative machinery in depth is on ש־ as the relative marker, and the complement side on complement clauses.

It is a prefix, and it stacks

ש־ is not a small word that stands beside the clause. It is attached, like ה־ or ב־, with no space and no hyphen: שהוא, שאני, שקניתי. And because it attaches to whatever comes next, it happily rides on top of that word's own prefixes — שב־, שה־, and even a whole second subordinator.

אמרו לי שבבית שלהם אף פעם לא נועלים את הדלת.

amrú li shebabáyit shelahém af pá'am lo no'alím et hadélet

I've been told that in their house nobody ever locks the door.

סיפרתי להם שכשהגעתי הדלת כבר הייתה פתוחה.

sipárti lahém shekshehigáti hadélet kvar haytá ptukhá

I told them that when I got there the door was already open.

שכשהגעתי is three elements welded into one written word — ש־, כש־ and the verb — and it is completely ordinary Hebrew. Writing any of them detached is a spelling error rather than a grammar one, and the general behaviour of Hebrew's one-letter prefixes is on the prefix letters.

It is never optional

This is the transfer error, and it is the single clearest tell that a Hebrew sentence was assembled by an English speaker. English drops that freely — I think he's late, the film we saw — because English treats it as removable punctuation. Hebrew treats ש־ as part of the clause's structure. There is no bare-complement option and no bare-relative option: I said I'm coming has to be אמרתי שאני בא, with the ש in it.

שמעתי שהם עוברים דירה בקיץ, את יודעת משהו?

shamáti shehém ovrím dirá bakáyits, at yodá'at máshehu?

I hear they're moving flat in the summer — do you know anything? (to a woman)

האנשים שגרים מולנו החליפו את כל החלונות.

ha'anashím shegarím mulénu hekhlífu et kol hakhalonót

The people who live opposite us have replaced all their windows.

The connective family: ש־ plus a preposition

Here is the return on learning one letter. Hebrew builds most of its subordinating connectives by putting ש־ behind a preposition, and each of those has a bare twin that takes a noun instead of a clause. The two shapes are not interchangeable, and choosing between them is a question about what follows, not about meaning.

Before a clause	Before a noun	Sense
אחרי ש־ akharéi she-	אחרי akharéi	after
לפני ש־ lifnéi she-	לפני lifnéi	before
בגלל ש־ biglál she-	בגלל biglál	because / because of
למרות ש־ lamrót she-	למרות lamrót	although / despite
מכיוון ש־ mikeiván she-	— (use בגלל or בשל)	since, given that
כדי ש־ kdei she-	כדי + infinitive	so that / in order to

נדבר אחרי שאסיים לסדר את המטבח.

nedabér akharéi she'asayém lesadér et hamitbákh

We'll talk after I finish tidying the kitchen.

נדבר אחרי הארוחה, עכשיו אין לי ראש לזה.

nedabér akharéi ha'arukhá, akhsháv ein li rosh lazé

We'll talk after the meal — I haven't got the headspace for it right now.

למרות שהזמנתי מקום, נאלצנו לחכות עשרים דקות.

lamrót shehizmánti makóm, ne'elátsnu lekhakót esrím dakót

Even though I'd booked a table, we had to wait twenty minutes.

למרות הגשם הם המשיכו לשחק עד הסוף.

lamrót hagéshem hem himshíkhu lesakhék ad hasóf

They carried on playing to the end despite the rain.

Two rows depart from the pattern, and in different ways. מכיוון has no bare twin at all: before a noun you have to switch words, to בגלל or בשל. And כדי's bare form takes an infinitive rather than a noun — same logic underneath, one shape for a full clause and another for something smaller, but here the something smaller is a verb.

התקשרתי מראש כדי שלא נחכה בתור.

hitkashárti merósh kdei sheló nekhaké batór

I rang ahead so we wouldn't have to queue.

יצאנו מוקדם כדי לתפוס חנייה ליד הים.

yatsánu mukdám kdei litpós khanayá leyád hayám

We left early to grab a parking space near the beach.

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The test takes a second and never fails: look at what comes next. A whole sentence with its own verb needs the ש. A bare noun phrase must not have it. That is why after the meal is אחרי הארוחה and after I finish is אחרי שאסיים, and why neither can borrow the other's shape.

Two more environments, and only one of them transfers

The three jobs above are the core. Two more environments take the same prefix, and they split neatly by how much help English gives you.

A result clause hangs off כל כך or כזה — so tired that I fell asleep — and English puts a that there as well, so this one carries over without effort.

הייתי כל כך עייף שנרדמתי באמצע הסרט.

hayíti kol kakh ayéf shenirdámti be'emtsá haséret

I was so tired that I fell asleep halfway through the film. (m. speaker)

A comparison uses כמו ש־, and here English drops its that altogether — the way we planned, like I said — so nothing in your own sentence prompts you to supply the ש. This is the environment where the prefix goes missing most quietly.

זה לא יצא כמו שתכננו, אבל בסוף היה נחמד.

ze lo yatsá kmo shetikhnánu, avál basóf hayá nekhmád

It didn't turn out the way we'd planned, but in the end it was nice.

אשר and כי are not rejects

Two other words turn up in this territory, and courses tend to file them as mistakes. They are not.

אשר is the other relative marker. The Academy of the Hebrew Language's decision 4.5א names ש and אשר as the two relative words with no division of labour assigned between them, so אשר is a stylistic choice — a formal, written register — and not a lesser form. It has its own page, אשר.

החוק אשר נחקק בשנה שעברה נכנס לתוקף החודש.

hakhók ashér nekhkák bashaná she'avrá nikhnás letókef hakhódesh

The law that was passed last year comes into force this month. (formal written)

כי is a genuine complementiser as well as the word for because. Milog gives it both senses and glosses the second one simply as ש־, so אמר כי is standard formal and journalistic Hebrew rather than an error, and marking it wrong is itself the mistake. Which of the three to reach for is worked out on ש־, כי or אשר, and כי's own behaviour on כי.

בהודעה נמסר כי הקו יחזור לפעול מחר בבוקר.

bahoda'á nimsár ki hakáv yakhazór lif'ól makhár babóker

The notice said the line will be running again tomorrow morning. (formal)

Common Mistakes

1. Dropping the relative ש. English has a zero relative — the film we saw, the day I arrived — and Hebrew has none at all.

❌ הסרט ראינו אתמול היה נורא

Incorrect — Hebrew has no bare relative clause, so the ש is compulsory: הסרט שראינו אתמול היה נורא. The same goes for a time noun: ביום שהגעתי, never ביום הגעתי.

✅ הסרט שראינו אתמול היה נורא, יצאנו באמצע.

haséret shera'ínu etmól hayá norá, yatsánu ba'emtsá

The film we saw yesterday was terrible — we walked out halfway through.

2. Dropping the complementiser ש. The same habit on the other side of the system, and just as audible.

❌ הבטחתי לו אני מגיע בזמן

Incorrect — a complement clause takes ש־, which English lets you leave out and Hebrew does not: הבטחתי לו שאני מגיע בזמן.

✅ הבטחתי לו שאני מגיע בזמן ובסוף איחרתי בשעה.

hivtákhti lo she'aní magía bazmán uvasóf ikhárti besha'á

I promised him I'd be there on time and in the end I was an hour late.

3. A bare preposition in front of a clause. English because it rained is one word plus a sentence, so nothing prompts you to add anything.

❌ ביטלנו את הטיול בגלל ירד גשם

Incorrect — a bare preposition takes a noun, and a clause needs the ש: בגלל שירד גשם. With a noun instead: בגלל הגשם.

✅ ביטלנו את הטיול בגלל שירד גשם כל הבוקר.

bitálnu et hatiyúl biglál sheyarád géshem kol habóker

We called the trip off because it rained all morning.

4. Using ש where English uses what. ש־ hangs a clause onto something. When there is nothing for it to hang onto, Hebrew supplies מה.

❌ לא שמעתי שאמרת, תחזור בבקשה

I didn't hear what you said, say it again please

Incorrect as that sentence — as written it says 'I didn't hear that you said [so]'. English what becomes מה ש־: לא שמעתי מה שאמרת.

✅ לא שמעתי מה שאמרת, אפשר לחזור על זה?

lo shamáti ma she'amárta, efshár lakhazór al ze?

I didn't catch what you said, can you say it again? (to a man)

Key Takeaways

One prefix, three jobs: complement (כתבתי שאני מגיע), relative (החבר שהמליץ לי), and a clause on a time noun (ביום שהגענו). They are the same ש־, not three words that look alike.
ש־ is written attached — שהוא, שבבית — and it rides over the next word's own prefixes, so שכשהגעתי is one perfectly ordinary word.
It is never optional. English drops that and uses a zero relative; Hebrew does neither.
Most subordinating connectives are a preposition plus ש־, and each has a bare twin for a noun: אחרי שאסיים against אחרי הארוחה, למרות שהזמנתי against למרות הגשם. The test is simply what comes next.
Two rows depart from that table's pattern: מכיוון has no bare twin at all (before a noun, use בגלל or בשל), and כדי's bare form takes an infinitive rather than a noun — כדי לתפוס חנייה.
The same prefix also builds result clauses (כל כך עייף שנרדמתי) and comparisons (כמו שתכננו). English keeps its that in the first and drops it in the second, which is where the ש quietly goes missing.
אשר is the second relative marker (Academy decision 4.5א) and כי is a real complementiser in formal writing (Milog glosses that sense as ש־). Neither is a mistake; both are register choices.

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