heitettäisiin
Heiteltäisiin is a Finnish verb form. It is the third-person plural conditional form of the verb heittää, which means "to throw" or "to toss". The conditional mood in Finnish is used to express hypothetical situations, wishes, or polite requests. Therefore, "heiteltäisiin" translates to "they would throw" or "let's throw" (in a polite or suggestive sense).
The structure of the word "heiteltäisiin" can be broken down. "Heitä-" is the stem of the verb.
In practice, "heiteltäisiin" might be used in sentences like "Jos meillä olisi enemmän aikaa, heiteltäisiin palloa