Vaimoni työskentelee sairaalassa.

Yes. Vaimoni is made up of:

• vaimo = wife
• -ni = my

So vaimoni literally looks like wife-my, but in natural English it means my wife.

Finnish often adds possession directly to the noun with a suffix instead of using a separate word like my. You can also say minun vaimoni, where:

• minun = my
• vaimoni = my wife

That version is a bit more explicit, but vaimoni by itself is completely normal.

Työskentelee is the third-person singular present tense form of the verb työskennellä, which means to work.

So:

• minä työskentelen = I work
• sinä työskentelet = you work
• hän työskentelee = he/she works

Since vaimoni is she in this sentence, the verb is työskentelee.

Because Finnish uses cases instead of prepositions in many situations.

• sairaala = hospital
• sairaalassa = in the hospital / at the hospital

The ending -ssa / -ssä is called the inessive case, and it often means in or inside.

So:

• sairaala = hospital
• sairaalassa = in a hospital / in the hospital / at the hospital

In this sentence, sairaalassa tells you the place where the wife works.

Finnish and English divide location expressions differently.

The Finnish ending -ssa literally points to being in something, but in many contexts English would naturally say at. With workplaces and institutions, Finnish often uses this internal-location case even when English prefers at.

So sairaalassa can correspond to:

• in the hospital
• at the hospital

depending on what sounds natural in English.

Because Finnish has no articles. There is no direct equivalent of English a/an or the.

So sairaalassa could mean:

• in a hospital
• in the hospital
• at a hospital
• at the hospital

The exact meaning depends on context.

The same is true for vaimoni: Finnish does not need an article there either.

It can mean both, depending on context.

Finnish present tense often covers both:

• My wife works at a hospital
• My wife is working at the hospital

Without more context, the sentence usually sounds like a general fact: My wife works at a hospital.

If the speaker is talking about what she is doing right now, it could also be understood as is working.

Finnish word order is more flexible than English word order.

The neutral, basic order here is:

• Vaimoni työskentelee sairaalassa.

That is the most straightforward way to say it.

But other orders are possible for emphasis or style, for example:

• Sairaalassa vaimoni työskentelee.

That might emphasize the hospital as the place.

Even though Finnish allows more flexibility, not every order sounds equally natural in every situation. For a learner, the original sentence is the safest neutral version.

Yes, absolutely.

Both are correct:

• Vaimoni työskentelee sairaalassa.
• Minun vaimoni työskentelee sairaalassa.

The first is more compact and very common.
The second adds the separate possessive word minun as well.

In modern Finnish, using both the possessive word and the suffix is possible and normal in many situations, though the shorter form is often enough.

Because vaimoni is the basic object-free subject form here.

In this sentence, vaimoni is the subject of the verb, so it appears in its basic nominative form with the possessive suffix:

• vaimo
  • -ni = vaimoni

Forms like vaimoani would be used in different grammatical situations, for example when the noun is an object in a sentence.

So here, vaimoni is correct because my wife is the person doing the action.

In standard Finnish, vaimo specifically means wife.

It does not normally mean just woman. The general word for woman is:

• nainen = woman

So vaimoni clearly means my wife, not my woman.

A few useful points:

• Stress in Finnish is usually on the first syllable: TYÖsken-te-lee
• ö is a front rounded vowel, somewhat like the vowel in French deux or German schön
• y in Finnish is also a rounded front vowel, like German ü
• Double vowels are pronounced longer

In työskentelee, the final ee is long, so you should hold that vowel a bit:

• työsken-te-lee

You do not need to reduce unstressed vowels the way English often does; Finnish vowels are usually pronounced clearly.

Break it into syllables like this:

• sai-raa-las-sa

A few pronunciation tips:

• Stress the first syllable: SAI-raa-las-sa
• ai is a diphthong
• aa is a long vowel, so it lasts longer than a short a
• ss is pronounced as a longer s sound than a single s

So it is not rushed. Finnish spelling is quite consistent, so what you see is usually very close to what you say.

Yes. It is related to työ, which means work.

• työ = work
• työskennellä = to work

This is a good example of how Finnish builds related words from the same root. You do not need to analyze every part in detail at the beginning, but it is helpful to notice the connection.

So when you see työskentelee, you can recognize that it belongs to the work family of words.

Yes, the form sairaalassa naturally suggests the workplace is in/at a hospital as a location.

In many real contexts, that also implies she works for the hospital, but grammatically the sentence is mainly telling you where she works.

So the core idea is location:

• My wife works at a hospital
• literally, something like My wife works in a hospital

Context tells you whether the speaker means the building, the institution, or both.