lentäessä

Lentäessä is a Finnish verb form that translates to "while flying" or "when flying" in English. It is the present active participle of the verb lentää, which means "to fly." The form lentäessä is used to describe actions or states that occur during the act of flying. For example, "Lentäessä huomaamme, että sää on muuttunut" translates to "While flying, we noticed that the weather had changed."

In Finnish grammar, lentäessä is an adverbial participle, which means it functions as an adverb, modifying the main verb or clause. It is formed by adding the suffix -essä to the present active participle stem of the verb. The stem of lentää is lentä-, so the present active participle is lentävä, and the adverbial participle is lentäessä.

Lentäessä can also be used to describe the state or condition of something that is flying. For example, "Lentäessä lentokone on vaarassa törmätä" translates to "While flying, the airplane is at risk of colliding."

In summary, lentäessä is a Finnish verb form that describes actions or states occurring during the act of flying. It is formed by adding the suffix -essä to the present active participle stem of the verb lentää.