彼は勉強を始めるとどうして眠気を催すのだろうか。

Sentence Analyzer

English Translation

Why should he feel drowsy whenever he begins to study?

Furigana

彼(かれ)は勉強(べんきょう)を始(はじ)めるとどうして眠気(ねむけ)を催(もよお)すのだろうか。

Romanji

Kare wa benkyō o hajimeru to dōshite nemuke o moyoosu no darou ka.

Words

彼 (かれ)

he; him; his; boyfriend

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

勉強 (べんきょう)

study; diligence; discount; reduction

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.

始める (はじめる)

to start; to begin; to commence; to initiate; to originate; to open (e.g. a store); to start up; to establish (business. etc.); to start ...; to begin to ...

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

如何して (どうして)

why?; for what reason; how; in what way; for what purpose; what for

眠気 (ねむけ)

sleepiness; drowsiness

催す (もよおす)

to hold (a meeting); to give (a dinner); to show signs of; to feel (sensation, emotion, etc.)

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

だ (だ)

be; is; indicates past or completed action; indicates light imperative

か (か)

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