準備は必ず前日にやっておく

N4 準備 junbi preparation, readiness N4 必ず kanarazu always, certainly, without fail N5 前 mae front / before N4 日 hi day, sun, sunlight

N2 準 jun / jun.jiru, jun.zuru, nazora.eru, nori, hito.shii, mizumori semi-, correspond to, proportionate to N3 備 bi / sona.eru, sona.waru, tsubusa.ni equip, provision, preparation N3 必 hitsu / kanara.zu invariably, certain, inevitable N5 前 zen / mae, -mae in front, before, devant N5 日 nichi, jitsu / hi, -bi, -ka day, sun, Japan

N4 〜ておく te oku Indicates an action done in advance as preparation, attaches to the te-form verb, means do beforehand 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