彼(かの)女(じょ) kanojoは wa非(ひ)常(じょう)に() hijouni驚(おどろ)い()た() odoroitaので node、もの monoが ga言(い)え()な()か()っ()た() ienakatta。 She was so surprised that she couldn't speak. Literal She [topic-は] extremely surprised [so-ので], things [subject-が] couldn't-say. ものが言えなかった — もの here means 'things/words,' and 言えない is the potential negative. ~ので gives the reason. emotions~ので (because)potential form (~える/~られる)
彼(かの)女(じょ) kanojoは wa非(ひ)常(じょう)に() hijouni驚(おどろ)い()た() odoroitaので node、もの monoが ga言(い)え()な()か()っ()た() ienakatta。 She was so surprised that she couldn't speak. Literal She [topic-は] extremely surprised [so-ので], things [subject-が] couldn't-say. ものが言えなかった — もの here means 'things/words,' and 言えない is the potential negative. ~ので gives the reason. emotions~ので (because)potential form (~える/~られる)