誰か窓を開けっ放しにしていたに違いない。

Sentence Analyzer

English Translation

Someone must have left the window open.

Furigana

誰(だれ)か窓(まど)を開(あ)けっ放(ぱな)しにしていたに違(ちが)いない。

Romanji

Dare ka mado o akeppanashi ni shiteita ni chigainai.

Words

誰 (だれ、たれ、た)

who

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

窓 (まど)

window

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.

開けっ放し (あけっぱなし)

leaving open; leaving ajar; outspoken; frank

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

為る (する)

to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to

違い (ちがい)

difference; discrepancy