彼は以前アメリカの大使だった

N5 彼 kare he N3 以前 izen before, previously, in the past N4 アメリカ amerika America, United States N3 大使 taishi ambassador

N3 彼 hi / kare, kano, ka.no he, that, the N4 以 i / motsu.te by means of, because, in view of N5 前 zen / mae, -mae in front, before, devant N5 大 dai, tai / oo-, oo.kii, -oo.ini large, big, grand N4 使 shi / tsuka.u, tsuka.i, -tsuka.i, -zuka.i use, send on a mission, order

N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information