何必……

何必…… means "why bother; no need to" and follows the frame 何必 A. Use it when the sentence needs to suggest something is unnecessary or not worth doing. Pay attention to register: many patterns in this group are formal, evaluative, or rhetorical, so they are stronger than everyday words. Do not choose a pattern only because the translation looks close; check whether the sentence is evaluation, sufficiency, inevitability, suggestion, or rhetorical affirmation/denial. Common mistakes include dropping fixed characters such as 于, 是, 不, 能, 非, confusing 不必, 何不, 干吗, or using a rhetorical pattern in a neutral statement.