だれかがドアをこつこつとたたいている。

Sentence Analyzer

だれ ドア こつこつ たたいている

English Translation

Someone is tapping at the door.

Furigana

だれかがドアをこつこつとたたいている。

Romanji

Dare ka ga doa o kotsukotsu to tataiteiru.

Words

(だれ、たれ、た)
who
()
indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
ドア (ドア)
door (Western-style)
()
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.
こつこつ (こつこつ、コツコツ)
unflaggingly; steadily; untiringly; laboriously; knocking; tapping; clicking; drumming
()
if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)
叩く (たたく、はたく)
to strike; to clap; to knock; to dust; to beat; to play drums; to abuse; to flame (e.g. on the Internet); to insult; to use up money; to call; to invoke (e.g. a function)