Breakdown of Yritys perustettiin kahdentenakymmenentenä marraskuuta.
marraskuu
November
yritys
company
perustaa
to found
kahdeskymmenes
twentieth
Questions & Answers about Yritys perustettiin kahdentenakymmenentenä marraskuuta.
Why is kahdentenakymmenentenä so long, and how is it formed?
This is the ordinal number for 20th (kahdeskymmenes) in the essive case. To say 'on the [nth] day', Finnish uses the essive ending -na or -nä. The tricky part is that for compound numbers like 20, both words get the ending! So kahdes (second) becomes kahdentena and kymmenes (tenth) becomes kymmenentenä.
Why is November (marraskuu) in the partitive case (marraskuuta)?
When you state a full date, the month takes the partitive case. Think of it as saying a day 'out of' or 'of' that month. It translates literally to 'on the twentieth of November'.
What form is the verb perustettiin?
It is the past passive form of the verb perustaa (to found or establish). The passive is used because the sentence focuses on the event ('was founded') without specifying exactly who did it. The -ttiin ending is the standard sign of the past passive.
Why doesn't Yritys take an object ending, since it is the thing being founded?
In a standard passive sentence, the object is put in the basic nominative form (no ending) instead of taking the usual -n or partitive object endings. Because perustettiin is passive, yritys stays in its basic dictionary form.