ドアを開けてはならない。
Sentence Analyzer
English Translation
You must not open the door.
Furigana
ドアを開 けてはならない。
Romanji
Doa o akete wanaranai.
Words
ドア
(ドア)
door (Western-style)
を
(を)
indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
開ける
(はだける)
to open; to bare; to expose; to stretch
ば
(ば)
if ... then; when; and; why don't you...?; the more (one does something); because; since
Kanji
Readings: カイ、 ひら.く、 ひら.き、 -びら.き、 ひら.ける、 あ.く、 あ.ける
Meanings: open, unfold, unseal