Learn Finnish: Sinun on jätettävä myös saappaat kiillotettavaksi. - You must also leave the boots to be polished.

Sinun on jätettävä myös saappaat kiillotettavaksi.

You must also leave the boots to be polished.

Breakdown of Sinun on jätettävä myös saappaat kiillotettavaksi.

to leave (something behind)

Questions & Answers about Sinun on jätettävä myös saappaat kiillotettavaksi.

Why does kiillotettavaksi end in -ksi, and what is its exact function here?

The ending -ksi is the translative case, which often expresses a role, purpose, or outcome. Here, it is attached to the passive present participle kiillotettava ('to be polished'). Together, the form kiillotettavaksi means 'for the purpose of being polished'.

This sentence has two words with the -ttava / -ttävä marker (jätettävä and kiillotettavaksi). Are they doing the same grammatical job?

They are the exact same participle form, but they serve different roles here. Jätettävä is working with on to form a necessity structure (Sinun on jätettävä = 'You must leave'). Kiillotettavaksi is acting as a purpose modifier ('to be polished').

Why is the subject sinun ('you') in the genitive case instead of the nominative sinä?

This is the classic Finnish necessity structure. To say someone must do something, Finnish uses the genitive for the person (sinun), the third-person singular of the verb olla (on), and the passive present participle of the action verb (jätettävä).

Could I say kiillottamiseksi instead of kiillotettavaksi?