how to use the verb "invest" in English

 Here is how to use the verb "invest" in English, along with 10 practical sentences illustrating its different contexts (finance, time, energy, and metaphor).

10 Example Sentences

1. Financial Investment (Money):
   
   
   • "She decided to invest her savings in renewable energy stocks."
     
     
   • (彼女は自分の貯蓄を再生可能エネルギーの株に投資することを決めた。)
     
     
2. Real Estate:
   
   
   • "It is often a smart move to invest in commercial property downtown."
     
     
   • (都心の商業物件に投資するのは、多くの場合賢明な判断だ。)
     
     
3. Investing in People / Education:
   
   
   • "A good company always invests heavily in employee training programs."
     
     
   • (優良企業は常に従業員の研修プログラムに多額の投資をしている。)
     
     
4. Investing Time and Effort:
   
   
   • "If you want to master a new language, you have to invest a lot of time every day."
     
     
   • (新しい言語をマスターしたいなら、毎日多くの時間を投資しなければならない。)
     
     
5. Investing Emotion (Figurative):
   
   
   • "He invested so much emotion into the project that it hurt when it was canceled."
     
     
   • (彼はそのプロジェクトに多大な感情を注ぎ込んでいたため、中止になったとき非常に傷ついた。)
     
     
6. Passive Voice (Being invested):
   
   
   • "I am deeply invested in the success of this local community initiative."
     
     
   • (私はこの地域社会の取り組みの成功に深くコミットしている/関与している。)
     
     
7. Future Returns / Long-term View:
   
   
   • "Think of this workshop as a way to invest in your future career."
     
     
   • (このワークショップを、将来のキャリアへの投資と捉えてください。)
     
     
8. Government / Infrastructure:
   
   
   • "The government plans to invest millions into modernizing the public transport system."
     
     
   • (政府は、公共交通機関の近代化に数百万（ドルや円など）を投資する計画だ。)
     
     
9. Metaphorical Use (Trust / Belief):
   
   
   • "She invested all her trust in him, only to be let down."
     
     
   • (彼女は彼に全幅の信頼を置いたが、裏切られてしまった。)
     
     
10. Passive form for emotional attachment ("be emotionally invested"):
    
    
    • "Fans were so emotionally invested in the TV series' finale."
      
      
    • (ファンはそのテレビシリーズの最終回に非常に入り込んでいた/感情移入していた。)
      
      

Key Grammar Tips:

• Invest in + [Noun/Gerund]: The preposition "in" is almost always used to show what you are putting your money, time, or trust into (e.g., invest in stocks, invest in yourself).
  
  
• Flexible Usage: While primarily used for money and finance, native speakers frequently use "invest" for time, energy, and emotion to mean dedicating resources toward a future reward.
  
  

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