heijastavatko

Heijastavatko is a Finnish interrogative verb form built from the verb heijastaa, meaning to reflect or cast back. The form combines the present tense, third-person plural form heijastavat with the question particle -ko (or -kö, depending on vowel harmony), yielding heijastavatko. This construction is used to ask whether a plural subject reflects something, such as light, images, or opinions, and it is common in both spoken and written Finnish.

Grammar notes: -ko/-kö is the Finnish question suffix attached to the finite verb. Which variant is used depends on the word’s vowels according to vowel harmony; in most cases, -ko is used with back vowels, while -kö appears with front vowels. The word order in such questions typically places the verb form before the object, as in Heijastavatko ikkunat valoa?

Examples:

- Heijastavatko ikkunat valoa?

- Heijastavatko kuvat valoa?

- Heijastavatko nämä peilit valoa?

Usage context: The form is appropriate when asking about a plural subject performing the action of reflecting. It can appear in everyday questions, academic writing, and instructional materials where precise, grammatically correct interrogatives are needed. The concept is part of Finnish finiteness and agreement, and it can be used in various tenses and moods by adjusting the verb accordingly, though heijastavatko specifically expresses present tense and plural subject.