💡 3.9. Modal Verbs

Modal verbs are a special group of auxiliary (helping) verbs that express possibility, necessity, permission, ability, and more. They are unique because they don’t change form based on the subject and are always followed by the base form of the main verb. Let’s dive into this lesson to understand modal verbs better!

What Are Modal Verbs?

Modal verbs are used to modify the meaning of the main verb in a sentence. They help express different attitudes or conditions such as ability, possibility, permission, obligation, or advice.

Here are some common modal verbs:

  • Can
  • Could
  • May
  • Might
  • Must
  • Shall
  • Should
  • Will
  • Would

How to Use Modal Verbs

Modal verbs are always followed by the base form of the main verb. For example:

Modal VerbExample SentenceMeaning
Can I can swim.Ability
Could She could be at home.Possibility
May You may leave early.Permission
Must You must wear a seatbelt.Obligation
Should He should study more.Advice

Common Uses of Modal Verbs

1. Expressing Ability

  • Can and Could are used to talk about ability.
  • I can play the guitar. (present ability)
  • I could run fast when I was young. (past ability)

2. Asking for or Giving Permission

  • Can, Could, and May are used to ask for or give permission.
  • Can I borrow your pen?
  • May I use your phone?

3. Talking About Possibility

  • May, Might, and Could are used to talk about possibilities.
  • It might rain tomorrow.
  • She could be at the park.

4. Expressing Obligation

  • Must is used to express strong obligation or necessity.
  • You must finish your homework.
  • We must follow the rules.

5. Giving Advice or Recommendations

  • Should is used to give advice or recommendations.
  • You should eat more vegetables.
  • He should see a doctor.

Negative Forms of Modal Verbs

To make modal verbs negative, simply add not after the modal verb.

Modal VerbNegative FormExample Sentence
CanCannot (Can’t) I can’t come today.
CouldCould not (Couldn’t) She couldn’t find her keys.
MayMay not You may not enter the room.
MustMust not (Mustn’t) You mustn’t smoke here.
ShouldShould not (Shouldn’t) He shouldn’t eat so much sugar.

Questions with Modal Verbs

To form questions with modal verbs, place the modal verb before the subject.

Modal VerbQuestion ExampleMeaning
Can Can you help me?Request for help
Could Could she be right?Possibility
May May I sit here?Permission
Must Must we finish now?Necessity
Should Should I call him?Advice

Practice Games


Conclusion

Modal verbs are essential for expressing various nuances in English. By mastering them, you’ll be able to communicate more effectively and naturally. Practice using them in your daily conversations, and soon they’ll become second nature!


Lesson Practice


Next steps:

Congratulations! You’ve completed lesson 💡 3.9. Modal Verbs.