滞在期間は三週間だ

N3 滞在 taizai stay, sojourn N3 期間 kikan period, term, duration N4 間 aida interval, space, between, during N5 三 san three N3 週 shuu week

N1 滞 tai, tei / todokoo.ru stagnate, be delayed, overdue N3 在 zai / a.ru exist, outskirts, suburbs N3 期 ki, go period, time, date N5 間 kan, ken / aida, ma, ai interval, space, intervalle N5 三 san, zou / mi, mi.tsu, mitsu.tsu three, trois, tres N4 週 shuu week, semaine, semana

N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information