❶shall の過去形
✓POINT
次の2つの例で shall ではなく should が使われているのは, 主節の動詞 (thought, asked) と時制を一致
いっちさせるため.
couldwould
I thought I should not see him again.
I thought I should not see him again.
私は彼に二度と会わないだろうと思った.
⦣ I think I shall not see him again. の過去形. shall ❶
I asked if I should open the window. (=I said, "Shall I open the window?")
I asked if I should open the window. I said, “Shall I open the window?”
❷義務・当然~すべきである, ~したほうがいい ⦣ この意味では ʃúdシュド と強く発音する.
関連語強制の度合は should < ought to < must の順で強くなる.
You should study harder.
You should study harder.
君はもっと勉強すべきだ.
You should be more careful.
You should be more careful.
君はもっと注意深くなければならない.
There should be no more wars.
There should be no more wars.
もう戦争があってはならない.
You shouldn't speak like that to your mother.
You shouldn't speak like that to your mother.
君はお母さんにそんな風に言ってはいけない.
Can I have beer?—No. You should have Coke.
会話Can I have beer?—No. You should have Coke.
ビール飲んでいい?—だめだよ. コーラにしなさい.
What should we do?
What should we do?
一体どうしたらいいんだろう.
⦣ What shall we do? よりも強い当惑とうわく・驚おどろきなどを表す.
Where should I get off?
Where should I get off?
(バス・電車で)どこで降りたらよいでしょう.
❸見込こみ・推測 ~するはずだ, きっと~だろう
They should be home by now.
They should be home by now.
彼らは今頃いまごろはもう家に着いているはずだ.
How should I know where he is?
How should I know where he is?
彼がどこにいるかどうして私が知っているはずがありますか.
⦣ 反問することで強い疑問を表す.