ビルは時間を違えないことはめったにない。

multi-floor building; multi-storey building; bill

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

time; hours

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.

to change; to alter; to run counter to; to go against; to break (one's word); to make a mistake (in); to err

thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as

rarely; seldom

not; emphatic suffix