LSAT Practice Test 2026 - Free LSAT Practice Questions and Study Guide

When "Must be" is negated in a logical reasoning context, it indicates "Need not be." This is because when something is said to "must be" true, it means it is required or necessary. Therefore, negating it would mean that it is not required or necessary, leading to the conclusion that it is not needed to be true. The other options, "May be," "Could be," and "Is always," do not accurately represent the negation of "Must be" in this context.