Expressing Possibility – How to Use May, Might, and Could The Right Way

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Have you ever struggled to express possibility in English clearly? Maybe you’re not sure when to use may, might, or could. No worries! In this blog, we’ll explain these three easy modal verbs with simple examples. By the end, you’ll confidently use them in your everyday English conversations.

What Are Modal Verbs?

Modal verbs are special helping verbs that add meaning to the main verb in a sentence. They express things like possibility, permission, ability, or necessity.

Today, we’re focusing on three modals:

May
Might
Could

All three express possibility, but they each have slightly different uses. Let’s see how!

1. How to Use "May"

The modal verb may is used when something is possible but we’re not completely sure. It’s often used when talking about future possibilities or giving formal permission.

"May" for Possibility

If we check, we may find good English schools in Dubai.
She may be at home, but I’m not sure.
We may go to the beach this weekend if the weather is good.

"May" for Formal Permission

You may leave once you finish your test.
May I use your phone? (Very polite request!)

Tip: “May” is more formal and polite than “might” and “could” when talking about possibilities or formal permissions. It’s often used in academic or professional situations.

2. How to Use "Might"

The modal verb might is very similar to “may,” but it usually suggests that something is less certain.

"Might" for Possibility

I might go to the cinema tonight, but I haven’t decided yet.
She might be sleeping, so don’t call her too late.
We might visit Dubai next year!

Tip: You can usually swap “may” and “might” without changing the meaning too much. However, “might” often sounds a little less certain.

Compare these two sentences:

I may go to the party. (There’s a good chance.)
I might go to the party. (I’m not sure, but it’s possible.)

3. How to Use "Could"

Could’ expresses general possibility, suggestions, or polite requests and informal permission.

Examples:

It could get chilly tonight, so take a jacket.
She could be at the café—she loves going there.
Could I borrow your pen? (polite request)
You could improve your English by joining an English course in Dubai! (suggestion)

Tip: ‘Could’ often implies possibility based on certain conditions or situations.

Tip: “Could” is often used to suggest a possibility rather than just state it.

May vs Might vs Could – What’s the Difference?

Now that you understand the basic meanings let’s compare them!

Remember: “May” and “might” are often interchangeable, but “could” is used more for possibilities that depend on circumstances.

Using May, Might, and Could in the Past

We can also use these modal verbs to talk about past possibilities. In this case, we use:

May have + past participle
Might have + past participle
Could have + past participle

Examples:

She may have forgotten about the meeting. (It’s possible she forgot.)
He might have missed the bus. (Maybe he didn’t catch the bus.)
They could have arrived earlier if they had left on time. (They had the possibility to arrive earlier.)

Tip: “Might have” and “may have” mean the same thing in the past!

Common Mistakes to Avoid!

❌ She may goes to the mall. ❌

✅ She may go to the mall. ✅

❌ He might can come to the party. ❌

✅ He might come to the party. ✅

❌ They could to visit Dubai next year. ❌

✅ They could visit Dubai next year. ✅

Remember: Modal verbs are always followed by the base form of the verb (not “to” + verb or -ing forms!).

Practice Time!

Now it’s your turn! Try filling in the blanks with may, might, or could:

It’s cloudy today. It ___ rain later.
I ___ go to the café after class, but I’m not sure.
If we hurry, we ___ catch the last bus.
She ___ have left her phone at home.

Check Out the Right Answer!

1) may
2) might
3) could
4) may/might have

If you want to improve your English skills and feel more confident using modal verbs (and much more!), why not take an English course in Dubai? At our English language institute Dubai, we offer top-quality courses for all levels, whether you want to communicate better in English ‘re or prepare with IELTS training Dubai.

Enquire now to find the perfect English language courses in Dubai for you!

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