in questions, [1526];
with infin., [1539];
with perf. indic. of anterior action, [1613];
with fut. perf., [1626];
nesciō ubī̆, [1788];
instead of rel. pron. with prep., [1793];
ubī̆ . . . ibī̆, [1831];
ubī̆ prīmum, [1923];
use of, meaning when, [1923-1926], [1932-1934];
use of, meaning where, [1971];