had better + V……:
(一) 說明: 在本句型中 , had better 為助動詞 , 後接原形 , 意指 “最好…”, 為勸告或建議用語 。用於現在或未來時間。
(二) 句型1: 肯定: had better + V ( 原形)
=may as well + V (原形)
否定: had better not + V ( 原形)
= may as well not + V (原形)
(三) 句型2: 肯定: had better + have + Vpp …….(表過去) (本來最好…)
否定: had better ont have + Vpp ………..( 本來最好不要…)
(四) 說明: 本句型表『所指的動作沒有成為事實』或『純粹指過去的時間』。
(五) 相關代換句型:
句型3: had better + V
=It + is + better / best + for +人+ to + V
will /would be advisable