Analyzer
Sentence analysis
10Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
扉
door; gate; opening; title pagenoun
を
object markergrammar
開ける
open; unwrap; unlock; open for business; empty; clear space; make room; move out; vacate; clear out; be away from; leave temporarily; dawn; grow light; end of a period or season; beginning of the New Year; leave time open; make time; keep a schedule free; make a hole; open up a holeichidan verb
に
direction, time, indirect object, or target markergrammar
は
topic markergrammar
秘文
password; secret phrase; secret spellnoun
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar