tapahtuuko

Tapahtuuko is a Finnish verb form derived from the verb tapahtua, meaning to happen or occur. It is the present tense, third-person singular form used in yes–no questions when the question particle -ko/-kö is attached. The corresponding statement form is tapahtuu (it happens); adding the question particle yields tapahtuuko (does it happen?).

In use, tapahtuuko appears at the start of a question or early in the clause, and the subject may follow the verb, reflecting Finnish word order flexibility. Examples include, for instance, Tapahtuuko tämä huomenna? (Will this happen tomorrow?) or Tapahtuuko se usein? (Does it happen often?). The form is common in both spoken and written Finnish and can refer to events, processes, or occurrences.

A softer or more speculative nuance can be achieved with a related form such as tapahtuukoohan or tapahtuukohan, which blends the question particle with a tentative tenor, e.g., Tapahtuukohan tämä? (I wonder if this will happen?). While tapahtuuko is the straightforward present-tense question form, other tenses use corresponding question forms, such as tapahtuiko for a past-time inquiry (Did this happen?).

Related terms include the base verb tapahtua and the noun tapahtuma (an event). Tapahtuuko remains a neutral, everyday construction used to inquire about whether something occurs or will occur.