two people using should would and could in a conversation.webp

“Should”, “Would” and “Could”: Differences and How to Use Them

by Edwin CañasWednesday, September 24 2025

Mastering English modal verbs can feel tricky, especially when it comes to “should,” “would,” and “could.” 

These three words are small but powerful, shaping how we give advice, talk about possibilities, or describe hypothetical situations. 

Understanding their differences not only helps you speak more naturally but also boosts your confidence in everyday conversations. 

Let’s break them down with clear explanations and practical examples you can use right away.

Difference Between “Should”, “Would” and “Could”

two people using should would and could in a conversation.webp

The modal verbs should, would, and could often confuse English learners because they sound similar but serve different purposes.

  • Should is used for giving advice, making recommendations, or expressing what is the right thing to do. Example: You should drink more water.
  • Would expresses hypothetical situations, preferences, or polite offers. Example: I would travel more if I had the time.
  • Could indicates ability in the past, possibility in the present/future, or polite requests. Example: She could speak French when she was young.

The Difference in Conversation:

Owen: “I’m really tired lately.”
May: “You should get more sleep.” (advice)
Owen: “If I didn’t have work tomorrow, I would stay up late.” (hypothetical)
May: “We could watch a movie now if you want.” (possibility)

When Should You Use “Should”?

Use should when:

  • Giving advice or recommendations

Example: You should see a doctor if you’re not feeling well.

  • Expressing moral obligation or duty

ExamplePeople should respect each other’s opinions.

  • Expectations or likelihood

ExampleThe train should arrive in 10 minutes.

When Should You Use “Would”?

Use would when:

  • Talking about hypothetical situations

Example: I would buy that car if I had enough money.

  • Expressing preferences or habits in the past

Example: I would rather stay home tonight than go out.

  • Making polite offers or requests

 ExampleWould you like a cup of tea?.

When Should You Use “Could”?

Use could when:

  • Expressing past ability

 Example When I was younger, I could run very fast..

  • Showing possibility in the present or future

 Example It could rain later, so bring an umbrella.

  • Making polite requests or suggestions

 Example Could you help me with my homework?.

Conclusion

Learning when to use “should,” “would,” and “could” is a big step toward sounding fluent and natural in English. 

Each one carries a unique meaning, whether you’re giving advice, imagining possibilities, or politely making requests. 

Improve your English skills with EZClass now! Also, check out the EZClass blog to discover more interesting articles.

And don't forget to share this article with your friends who are learning English!


 

Edwin Cañas

Edwin Cañas

Founder of EZClass

Edwin Cañas is an expert in e-learning, leadership, and educational technology. As COREnglish’s Director of Operations and founder of EZClass, he strives to make learning more engaging and accessible. He also co-authored the "How to Master Grammar for Beginners (Spanish Edition)" book to help Spanish learners master English with ease.

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