Yksi katuvalo on rikki, joten huoltomies korjaa sen huomenna.

One streetlight is broken, so the maintenance man will fix it tomorrow.

Breakdown of Yksi katuvalo on rikki, joten huoltomies korjaa sen huomenna.

• olla: to be
• se: it
• huomenna: tomorrow
• joten: so
• yksi: one
• huoltomies: the maintenance man
• rikki: broken
• katuvalo: streetlight
• korjata: to fix; to repair

Questions & Answers about Yksi katuvalo on rikki, joten huoltomies korjaa sen huomenna.

Why does Finnish use Yksi here? Is it like English a/one?

Yksi literally means one. In a sentence like this it can function a bit like English a/an, but it’s more specific: it highlights the number (one streetlight, not several).
If you just mean “a streetlight” without focusing on “one”, you might use something like Eräs katuvalo… (one/ a certain streetlight…) or simply Katuvalo on rikki… depending on context.

What is katuvalo grammatically? Is it a compound word?

Yes. katuvalo is a compound:

• katu = street
• valo = light
  Together katuvalo = streetlight.
  It behaves like a normal noun; here it’s in the basic form (nominative singular).

Why is it Yksi katuvalo on rikki and not some form with an article or “the”?

Finnish has no articles (a/an/the). Definiteness is usually understood from context or shown indirectly (e.g., with word order or pronouns like se/sen). So Yksi katuvalo already tells you “one streetlight” without needing an article.

What does on rikki literally mean, and why is it used instead of a single verb like “break”?

on rikki literally is is broken:

• on = is
• rikki = broken (state/condition word)
  Finnish often expresses “to be broken” as “to be in a broken state” rather than using a passive like “is broken” derived from a verb. You can also say things like Se meni rikki = “It broke” (literally “It went broken”).

Is rikki an adjective? Does it inflect like other adjectives?

Rikki is a bit special: it’s commonly treated as a “state word” and it typically does not inflect like a regular adjective in everyday use. You say on rikki, meni rikki, laittaa rikki (“to break”).
You wouldn’t normally use it like a normal attributive adjective rikki katuvalo.

What is joten doing, and how is it different from koska?

joten means so / therefore, introducing a consequence:

• X, joten Y = “X, so Y.”
  koska means because, introducing a reason:
• Y, koska X = “Y, because X.”
  Here the logic is: broken light → therefore it will be fixed.

Does joten affect word order or require a comma?

In writing, it’s normal to use a comma before joten when it connects two clauses:
Yksi katuvalo on rikki, joten huoltomies korjaa sen huomenna.
Word order in the second clause stays like a normal main clause (subject + verb + object).

Who/what is huoltomies? Is it a fixed job title?

huoltomies is commonly “maintenance man / caretaker / janitor,” depending on context (building maintenance, property upkeep, etc.). It’s a common compound too:

• huolto = maintenance/service
• mies = man
  A more gender-neutral option could be huoltaja in some contexts, but huoltomies is very common.

Why is the verb korjaa in the present tense if the action is tomorrow?

Finnish often uses the present tense for near-future plans, especially when a time word makes the future clear:

• korjaa = “fixes / will fix”
• huomenna = “tomorrow”
  So korjaa sen huomenna naturally means “will fix it tomorrow.”

Why is it sen and not se?

se = “it” as a subject form (nominative).
sen = “it” as an object (often called accusative, but it looks like genitive).
Since huoltomies is doing the fixing to it, you need the object form: korjaa sen = “fixes it.”

Could you leave out sen? Would the sentence still work?

Often, yes—Finnish can omit objects if they’re obvious from context:
Yksi katuvalo on rikki, joten huoltomies korjaa huomenna.
But that can sound a bit incomplete because korjata usually expects an object. Keeping sen is clear and natural.

Where can huomenna go in the sentence? Is the placement important?

huomenna is flexible. Common options:

• …korjaa sen huomenna. (neutral)
• …korjaa huomenna sen. (possible, but often sounds like emphasis or contrast)
• Huomenna huoltomies korjaa sen. (emphasizes “tomorrow”)
  Word order can shift to emphasize time, topic, or contrast, but the original order is very standard.