突然の訪問で失礼します

N3 突然 totsuzen abruptly, suddenly, unexpectedly N3 訪問 houmon call, visit N4 失礼 shitsurei impoliteness, discourtesy, excuse me

N3 突 totsu, ka / tsu.ku stab, protruding, thrust N3 然 zen, nen / shika, shika.ri, shika.shi, sa sort of thing, so, if so N3 訪 hou / otozu.reru, tazu.neru, to.u call on, visit, look up N4 問 mon / to.u, to.i, ton question, ask, problem N3 失 shitsu / ushina.u, u.seru lose, error, fault N3 礼 rei, rai salute, bow, ceremony

N5 〜ます masu Used at the end of verbs, polite present or future form, makes the sentence more polite N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase