reagoidessaan
Reagoidessaan is a Finnish non-finite verb form derived from the verb reagoida ("to react"), composed of the stem reagoid- and the adverbial suffix -essaan. It functions as an adverbial participle that expresses a temporal or concomitant relationship and is commonly translated into English as "when/while reacting" or "upon reacting."
The form follows regular Finnish patterns for the so-called -essa/-essä adverbial (also called the present adverbial
Syntactic function and meaning
Reagoidessaan typically introduces a subordinate adverbial clause indicating simultaneous action, a condition, or a cause: it
The construction is common in both written and spoken Finnish and is especially frequent in descriptive or
Hän muuttui varovaiseksi reagoidessaan uutiseen. (He became cautious when he reacted to the news.)
Reagoidessamme tilanteeseen teimme muistiinpanot. (While we reacted to the situation, we took notes.)