Questions & Answers about Olen kykenevä tähän työhön, ja minulla on pätevyys.
Why is tähän työhön in the illative (into) case here?
The adjective kykenevä (capable) requires the illative case for the thing you are capable of. While English uses the preposition 'of', Finnish essentially says 'capable into'. Therefore, tämä työ (this work) becomes tähän työhön.
Does the word kykenevä come from a verb?
Yes, it is the present active participle (using the -va/-vä ending) of the verb kyetä (to be able to). In this sentence, it functions as a regular adjective.
Could I just use the verb kyetä instead of the adjective kykenevä?
Absolutely! You could simply say Kykenen tähän työhön. Notice that both the verb kyetä and the adjective kykenevä require the exact same illative case (tähän työhön) for the target.
Why is pätevyys in the basic nominative form instead of the partitive?
In Finnish possession sentences (minulla on), the thing you possess acts as the grammatical subject. Because pätevyys (qualification) is being referred to as a single, whole concept here rather than an indefinite mass, it takes the nominative case.