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Questions & Answers about Tutkimus oli uusi.
How is oli formed? Does it follow the rules for Type 3 verbs?
Yes, olla (to be) is the most common Type 3 verb! To form the past tense, you take the consonant stem ol- and add the past tense marker -i-. For the third-person singular (he/she/it), there is no extra personal ending. So, ol- + -i- = oli.
Is tutkimus related to the verb tutkia (to study/research)?
Exactly! In Finnish, you can often create a noun from a verb by adding endings like -us or -mus. Here, the verb tutkia becomes the noun tutkimus (a study, or research).
Why is uusi in the basic nominative form, rather than the partitive (uutta)?
In "A is B" sentences, the adjective describes the subject. Because tutkimus (a piece of research) is treated as a complete, countable concept here—not an uncountable mass or substance like coffee or water—the adjective uusi stays in the basic nominative form to match it.