Commas Before Conjunctions

Level 4

A comma goes before že, ktorý, keď, ak, aby, lebo and other words that start a dependent clause: Viem, že prídeš (I know you'll come). A plain a (and) takes no comma: čaj a káva.

How It Works

Always before a dependent clause. Words like že, keď, ak, aby, lebo, či, kým, hoci and the relative words ktorý, čo, kde start a clause that needs a comma: Viem, že prídeš. English often leaves this comma out; Slovak never does.

Clause in the middle: two commas. A dependent clause inside the main clause is closed with a second comma: Kniha, ktorú čítam, je veľmi dobrá. (see relative ktorý).

No comma before a simple a, i, alebo, ani. When these words just add one thing to another, there is no comma: čaj a káva, Otec číta a mama varí. Pôjdeme vlakom alebo autobusom.

Repeated pairs take a comma. When the joining word comes twice, as in ani ... ani, i ... i, alebo ... alebo and buď ... alebo, a comma goes before the second one: Nemám ani čas, ani peniaze. Buď príde, alebo zavolá.

Two dependent clauses joined by a. Put the comma before the first že only: Povedal, že príde a že zavolá. The same goes for ak ... a ak, aby ... a aby.

When a does take a comma.

  • before a preto, a tak, a teda, a predsa, a pritom: Bolo neskoro, a preto sme išli domov.
  • when a clause in the middle ends just before a: Povedal, že príde, a odišiel.

Contrast words. Ale, no, lenže and však at the start of a clause always take a comma: Chcel prísť, ale nemal čas. Však can also come later in its clause, and then the comma stays at the clause boundary: Chcel prísť, nemal však čas. (see a, ale and alebo).

Examples (6)

  1. Viem, že prídeš.

    I know you'll come.

    Word by Word: I-know, that you-will-come.

  2. Na raňajky mám čaj a rožok.

    I have tea and a roll for breakfast.

    Word by Word: For breakfast I-have tea and roll.

    A joins two words: no comma.

  3. Kniha, ktorú čítam, je veľmi dobrá.

    The book I'm reading is very good.

    Word by Word: Book, which I-read, is very good.

    The clause in the middle has a comma on both sides.

  4. Povedal, že príde a že zavolá.

    He said he would come and that he would call.

    Word by Word: He-said, that he-will-come and that he-will-call.

    No comma before a že.

  5. Bolo neskoro, a preto sme išli domov.

    It was late, so we went home.

    Word by Word: It-was late, and therefore we went home.

  6. Keď prídeš domov, zavolaj mi.

    When you get home, call me.

    Word by Word: When you-come home, call me.

Common Mistakes

  • Leaving out the comma before že.

    Myslím že máš pravdu.
    Myslím, že máš pravdu.

    Že starts a dependent clause, and every dependent clause is separated by a comma.

  • Putting a comma before a simple a.

    Kúpil som chlieb, a mlieko.
    Kúpil som chlieb a mlieko.

    A that simply adds another item takes no comma.

  • Forgetting the second comma after a clause in the middle.

    Muž, ktorý tam stojí je môj učiteľ.
    Muž, ktorý tam stojí, je môj učiteľ.

    A clause inside the sentence needs a comma at its end too, before the main clause continues.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

Commas Before ConjunctionsLevel 4

Learn This First

Before Commas Before Conjunctions, learn Saying That: že and Relative Pronoun ktorý. Commas are needed before že and other conjunctions. Relative clauses with ktorý are also set off by commas.