LONDON (Reuters) - British companies have raised their inflation expectations for the year ahead, according to a survey for the Bank of England which is watching closely for signs that a recent jump in prices might prove longer-lasting than it has predicted. Year-ahead annual price inflation was expected to be 3.5% in the three months to September 2022, up from 3.2% in the August survey, the BoE said on Thursday. Writing by William Schomberg; Editing by Alistair Smout Our Standards: The Thomson Reuters Trust Principles.