Breakdown of Sinun täytyy olla tarkka, kun pakkaat kirjoja.
olla
to be
kirja
book
sinä
you
täytyä
to have to
pakata
to pack
kun
when (conjunction)
tarkka
careful (precise, exact)
Questions & Answers about Sinun täytyy olla tarkka, kun pakkaat kirjoja.
Why is it sinun instead of sinä?
The verb täytyy (must) is a necessity verb. In Finnish, these verbs always require the person who 'must' do something to be in the genitive case. So instead of the basic form sinä, you must use sinun.
If the subject is sinun, why doesn't the verb have a personal ending (like pakkaat)?
Necessity verbs like täytyy and pitää are unique. They never take personal endings and always freeze in the third-person singular form. The genitive word at the start (sinun) is what tells us who has to do the action.
Why is tarkka in its basic dictionary form?
Even though the subject is in the genitive (sinun), adjectives describing the subject in a täytyy sentence stay in the nominative (basic) form as long as the subject is singular. If you were talking to multiple people, it would change to the partitive plural (tarkkoja).
Why is kirjoja in the partitive plural rather than the regular plural?
Kirjoja is the partitive plural of kirja (book). The partitive is used here as the object because you are talking about an unspecified amount of books (just 'some books'), and packing them is an ongoing action.
Learn Sinun täytyy olla tarkka, kun pakkaat kirjoja and more in Finnish
All course content and exercises are completely free — no paywalls, no trial periods, no signup needed.
- ✓ Practice with interactive exercises
- ✓ Track your progress with spaced repetition
- ✓Learn at your own pace — completely free