彼女は約束を忘れたに違いない。

Sentence Analyzer

彼女は約束を忘れたに違いない。

English Translation

She must have forgotten the promise.

Furigana

彼女(かのじょ)は約束(やくそく)を忘(わす)れたに違(ちが)いない。

Romanji

Kanojo wa yakusoku o wasureta ni chigainai.

Words

彼女 (かのじょ)

she; her; her; girlfriend; sweetheart

は (は)

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

約束 (やくそく)

promise; agreement; arrangement; one's word; contract; pact; appointment; engagement; date; convention; rule; destiny; fate

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.

忘れる (わすれる)

to forget; to leave carelessly; to be forgetful of; to forget about; to forget (an article)

に (に)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

違い (ちがい)

difference; discrepancy