- I could swim when I was 5 years old.
- You could see the ambulance coming.
- Nancy could ski like a pro by the age of 11.
［過去の推量：canの過去形］
- They could have taken a taxi home instead of walking and getting wet.
- I could have been wrong.
- He could have swum faster if his leg hadn’t hurt him.
［推量］
- I could be late tonight. I have a lot of work to do.
- The queue is very long. We could be waiting for hours.
- This plan could really work out.
［丁寧な依頼］
- Could you help us?
- Could you please be quiet?
- Could you confirm that you will be attending the consultation this Monday?
［丁寧な許可］
- Could I borrow your pen, please?
- Could I get you more water?
- Could I take this jacket with me?
［丁寧な提案］
- We could go to the cinema tonight.
- I could meet you after work.
- You could borrow my umbrella.
※日記 に補足があります。
→ 文法 #34 助動詞の一覧
→ 文法 #38 助動詞の過去形
→ 文法 #09 助動詞can
