ought to

分类：情态动词

定义

应该，表示义务或责任，比should语气更强。

用法

• 表示义务或责任(比should更强)
• 表示推测(应该)
• ought to have done表示’本应该做而没做’

例句

1. You ought to respect your elders.
2. He ought to be home by now.
3. You ought to have told me earlier. (本应该)

相关术语

• should
• must
• ought to have done