Three It seems odd to me that "used she to come below?" is marked as formal (outdated-fashioned and awkward I concur with). The "used to" building registers with me as remaining basically informal. In a formal context I would assume "did she previously occur here?" or Another wordier phrase. (AmE https://archernanyk.thechapblog.com/36144509/used-40-shipping-container-for-sale-no-further-a-mystery