Breakdown of Tehtävää ei olisi peruttu, jos kapteeni olisi tiennyt totuuden.
olla
to be
ei
no / not (negative verb)
tietää
to know
tehtävä
task
jos
if
perua
to cancel
totuus
truth
kapteeni
captain
Questions & Answers about Tehtävää ei olisi peruttu, jos kapteeni olisi tiennyt totuuden.
How do we form the negative conditional perfect passive in ei olisi peruttu?
You build it with three parts: the negative verb ei, the conditional auxiliary olisi (would be), and the passive past participle of the main verb, which here is peruttu (from perua, to cancel). Together, they translate to "would not have been cancelled".
Why is tehtävää in the partitive case rather than the nominative?
Because the sentence is negative. In Finnish passive sentences, the logical "subject" (what is being acted upon) is treated grammatically as an object. Since the verb is negative (ei olisi peruttu), its object must be in the partitive case (tehtävää), following the standard rule that negative objects are always partitive.
What is the difference between the verb endings in peruttu and tiennyt?
They show the difference between passive and active voices in the perfect tenses. peruttu is a passive past participle (using the -ttu / -tu ending), meaning the action is done to something by an unnamed entity. tiennyt is an active past participle (using the -nut / -nyt ending), because a specific subject (kapteeni) is doing the action.
Why is totuuden in the genitive case, while tehtävää is partitive?
It all comes down to whether the verb is affirmative or negative! totuuden (the truth) is the object of the affirmative clause olisi tiennyt (would have known), so it takes the genitive-looking accusative ending -n to show the action is complete. On the other hand, tehtävää is the object of a negative clause, which forces the partitive case.
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