ought to

ought toとは　意味・定義・例文

Helping verb 助動詞

1. used to show an obligation or a duty

～すべきである

You ought to do your best.

2. used to show what is expected or likely

～するはずである

She ought to be home by now.

3. used to offer advice

～したほうがよい

It's late. You ought to go home.