交通事故による死亡者数は減少している

N4 交通 koutsuu traffic, transportation N4 事故 jiko accident, incident N3 死亡 shibou death, passing N3 者 mono person, someone, individual N3 数 suu number, amount, count N3 減少 genshou decrease, reduction, decline N5 ている te iru be doing

N3 交 kou / maji.waru, maji.eru, ma.jiru, maji.ru, ma.zaru, ma.zeru, -ka.u, ka.wasu, kawa.su, komogomo mingle, mixing, association N4 通 tsuu, tsu / too.ru, too.ri, -too.ri, -doo.ri, too.su, too.shi, -doo.shi, kayo.u traffic, pass through, avenue N4 事 ji, zu / koto, tsuka.u, tsuka.eru matter, thing, fact N1 故 ko / yue, furu.i, moto happenstance, especially, intentionally N4 死 shi / shi.nu, shi.ni- death, die, mort N3 亡 bou, mou / na.i, na.ki-, horo.biru, horo.bu, horo.bosu deceased, the late, dying N4 者 sha / mono someone, person, personne N3 数 suu, su, saku, soku, shu / kazu, kazo.eru, shibashiba, se.meru, wazurawa.shii number, strength, fate N2 減 gen / he.ru, he.rasu dwindle, decrease, reduce

N4 〜によって ni yotte Indicates means, cause, agent, basis, or difference depending on context, attaches to a noun, means by, through, or depending on 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 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information N5 〜よ yo Sentence ending particle adding information to listener, emphasizes statement, expresses certainty or warning