Hankimme uuden tietokoneen.

It is the verb form from hankkia, which means to get, acquire, obtain, procure, and sometimes to buy, depending on context.

So hankimme uuden tietokoneen means something like we got/acquired a new computer. It is a little broader than ostaa (to buy), because hankkia does not always focus on the act of paying for it.

Because the verb ending already shows the subject.

In hankimme, the ending -mme means we. So Finnish does not need a separate pronoun here.

• Hankimme uuden tietokoneen. = We got a new computer.
• Me hankimme uuden tietokoneen. = also possible, but me adds emphasis or contrast.

This is very common in Finnish: subject pronouns are often left out when the verb ending makes the subject clear.

It can be either one, depending on context.

For this verb, hankimme can mean:

• we get / we acquire
• we got / we acquired

Finnish often relies on context, time words, or the surrounding sentences to make the time clear.

For example:

• Huomenna hankimme uuden tietokoneen. = Tomorrow we will get a new computer.
• Eilen hankimme uuden tietokoneen. = Yesterday we got a new computer.

So if you saw only Hankimme uuden tietokoneen, the form itself does not fully tell you the time.

Because the adjective and the noun must match, and here the object is a whole, completed item: one entire new computer.

So:

• uusi = new
• tietokone = computer

But in this sentence they become:

• uuden
• tietokoneen

The adjective agrees with the noun in case, so both change form.

It is the form used here for a total object in the singular.

In beginner-friendly terms, Finnish often uses this -n form when the action affects the whole object as a complete result:

• Hankimme uuden tietokoneen. = we got a whole new computer

This form looks the same as the genitive singular, and many learners first meet it that way. In object sentences like this, it is often explained as the singular total object form.

Because tietokonetta would be the partitive, and that would suggest a different idea.

Compare:

• uuden tietokoneen = a whole new computer, as a completed result
• uutta tietokonetta = a new computer in a more incomplete, ongoing, or non-total sense

With hankkia, when you mean that the whole item was obtained, Finnish normally uses the total object:

• Hankimme uuden tietokoneen.

A partitive object would sound unnatural here unless the sentence structure or meaning changed.

Because uusi is one of those Finnish words whose stem changes when it is declined.

Its basic form is:

• uusi = new

But in other cases you get forms like:

• uuden
• uutta
• uudessa

So this is not just a simple add -n situation. The word itself changes stem as part of normal Finnish inflection.

This is something you mostly just learn by exposure and practice.

Yes. It is the neutral, standard word order:

verb + object

Finnish word order is more flexible than English, but this sentence is perfectly normal and natural.

You could also change the word order for emphasis:

• Me hankimme uuden tietokoneen.
• Uuden tietokoneen hankimme.

But without a special reason, Hankimme uuden tietokoneen is a straightforward standard sentence.

No. Finnish does not have articles like a/an or the.

So uuden tietokoneen can mean:

• a new computer
• in some contexts, the new computer

Usually, in a sentence like this, English would most naturally say a new computer, but Finnish itself does not mark that difference with an article.

It is very natural standard Finnish, especially in writing and careful speech.

In everyday spoken Finnish, people often use other patterns, for example:

• Me hankittiin uusi tietokone.
• Hankittiin uusi tietokone.

Also, in speech people might choose ostaa if they specifically mean buy:

• Ostettiin uusi tietokone.

So Hankimme uuden tietokoneen is correct and natural, but it sounds more like standard written or careful spoken Finnish than casual everyday conversation.

Ostaa specifically means to buy.

Hankkia is broader. It means to obtain, acquire, get, procure, and it may or may not involve buying.

So:

• Ostimme uuden tietokoneen. = We bought a new computer.
• Hankimme uuden tietokoneen. = We got/acquired a new computer.

If the important point is the purchase itself, ostaa is more precise. If the important point is simply that you ended up with it, hankkia works well.