彼女が事件の黒幕だと確信してる

N5 彼女 kanojo she N5 彼 kare he N3 事件 jiken incident, case, event N5 黒 kuro black N3 幕 maku curtain, act (in play) N1 だと dato if it's the case N1 確信 kakushin conviction, confidence

N3 彼 hi / kare, kano, ka.no he, that, the N5 女 jo, nyo, nyou / onna, me woman, female, femme N4 事 ji, zu / koto, tsuka.u, tsuka.eru matter, thing, fact N3 件 ken / kudan affair, case, matter N4 黒 koku / kuro, kuro.zumu, kuro.i black, noir, negro N1 幕 maku, baku / tobari curtain, bunting, act of play N3 確 kaku, kou / tashi.ka, tashi.kameru assurance, firm, tight N3 信 shin faith, truth, fidelity

N5 〜ている te iru Indicates ongoing action, continuous state, repeated habit, or resulting condition depending on context N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase