日本に来てから三年になります。

N3 日本 nippon Japan N3 来 rai next, coming, prefix for time N5 三 san three N5 年 toshi year, age

N5 日 nichi, jitsu / hi, -bi, -ka day, sun, Japan N5 本 hon / moto book, present, main N5 来 rai, tai / ku.ru, kita.ru, kita.su, ki.tasu, ki.taru, ki, ko come, due, next N5 三 san, zou / mi, mi.tsu, mitsu.tsu three, trois, tres N5 年 nen / toshi year, counter for years, année

N4 〜てから te kara Indicates clear time sequence, attaches to the te-form verb, means after doing something N5 〜ます masu Used at the end of verbs, polite present or future form, makes the sentence more polite N5 〜から kara Indicates cause or reason, equivalent to because or since, connects two clauses explaining reason N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜か ka Marks a question, alternative, or uncertainty, appears at the sentence end or between options