ADJ. next | last, past, previous | whole
VERB + FORTNIGHT spend We've spent the last fortnight in Spain.
FORTNIGHT + VERB elapse, go by, pass A fortnight passed and we still hadn't heard from them.
PREP. after a/the ~, during a/the ~, for a/the ~, in a/the ~ We hope to leave in the next fortnight. | over a/the ~, within a/the ~