語態詳解 I. 徵求意見和請求 (May, Can, Could, Do you mind if…?) II. 向別人要求 (Will, Can, Could, Would, Would you mind…?) III. 勸告 ( Should, Ought to, Had better) IV . 給予建議 (Why don’t…?, Why not…?, Could, Let’s, How about…?) V. 表達是否有能力 (Can, Could, Be able to) VI. . 偏好 (Prefer, Would prefer, Would rather) VII. 必要性 (Have [got] to, Must) VIII. 對…的期望 (Be supposed to) IX. 對過去發生過的事情之建議用法 (should have, ought to have, could have, might have) X. 對過去的推測 (must have,