Tämä osaaja on taitava ohjelmoinnissa.

Questions & Answers about Tämä osaaja on taitava ohjelmoinnissa.

Why do we use the inessive case (-ssa) for ohjelmoinnissa here?
In Finnish, adjectives that express a level of skill—like taitava (skilled), hyvä (good), and huono (bad)—require the inessive case (-ssa/-ssä) for the skill being described. While in English we say "skilled at", Finnish literally says "skilled in".
Could I use the verb ohjelmoida (to program) instead of the noun ohjelmointi here?
Yes! To use a verb with taitava, you must put it into the 4th infinitive inessive form, which ends in -misessa (meaning "in the act of doing"). The sentence would become: Tämä osaaja on taitava ohjelmoimisessa. However, because ohjelmointi is a very common established noun, using the noun is usually more natural.
Why does the nt in ohjelmointi change to nn in ohjelmoinnissa?
This is consonant gradation. Adding the inessive ending -ssa closes the final syllable. A closed syllable triggers the "weak" consonant grade, causing the nt in the base word ohjelmointi to soften into nn in ohjelmoinnissa.
The word osaaja translates to "expert". How is it formed?
Osaaja is a noun derived from the verb osata (to know how, to have a skill). By adding the -ja/-jä suffix, which indicates a "doer" (similar to "-er" in English), it becomes "one who knows how" — an expert, professional, or specialist.

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