虫歯を放置すると、もっと悪くなるよ

N3 虫歯 mushiba cavity, decayed tooth N1 放置 houchi leave as is, leave alone, neglect N4 すると suru to then, when that happens N5 もっと motto more N3 悪 aku evil, vice, badness N5 なる naru become, turn into, happen

N2 虫 chuu, ki / mushi insect, bug, temper N3 歯 shi / yowai, ha, yowa.i, yowai.suru tooth, cog, dent N3 放 hou / hana.su, -ppana.shi, hana.tsu, hana.reru, ko.ku, hou.ru set free, release, fire N3 置 chi / o.ku, -o.ki placement, put, set N4 悪 aku, o / waru.i, waru-, a.shi, niku.i, -niku.i, aa, izukuni, izukunzo, niku.mu bad, vice, rascal

N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements N5 〜も mo Means also, adds another similar item, often replaces particles such as wa ga or o N5 〜よ yo Sentence ending particle adding information to listener, emphasizes statement, expresses certainty or warning