Learn Hardcore Finnish: Vaihtoehto on hyvä.

Finnish does not use articles like "a" or "the". The noun vaihtoehto appears in its nominative form as the subject, and its definiteness is understood from context rather than from an article.

What role does the word on play in the sentence?

The word on is the third person singular form of the verb olla (“to be”). It functions as the linking verb that connects the subject vaihtoehto with the predicate adjective hyvä.

Why is the adjective hyvä not inflected with any case endings?

In Finnish, adjectives used as predicate complements after a linking verb remain in their basic form. Unlike adjectives that directly modify a noun (attributive adjectives), predicate adjectives such as hyvä do not take additional inflections for case or number.

What is the grammatical structure of this sentence?

The sentence follows a simple subject–verb–predicate structure. Vaihtoehto is the subject in the nominative case, on serves as the linking verb, and hyvä is the predicate adjective describing the subject. This structure is similar to simple English sentences like “The option is good.”

Can the word order be rearranged in Finnish without changing the meaning of the sentence?