彼、絶対に負けないって宣言した

N5 彼 kare he N3 絶対 zettai absolutely, definitely, absolute N3 負け make defeat, loss N5 ない nai there isn't, doesn't have N1 宣言 sengen declaration, proclamation, announcement

N3 彼 hi / kare, kano, ka.no he, that, the N3 絶 zetsu / ta.eru, ta.yasu, ta.tsu discontinue, sever, cut off N3 対 tai, tsui / aite, kota.eru, soro.i, tsurea.i, nara.bu, muka.u vis-a-vis, opposite, even N3 負 fu / ma.keru, ma.kasu, o.u defeat, negative, - N1 宣 sen / notama.u proclaim, say, announce N4 言 gen, gon / i.u, koto say, word, dire

N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action