Modal Verbs at a glance
can speak
Read the rule, inspect the example, then check yourself.
Overview
Modal verbs add meaning to another verb. Common modals include can, could, may, might, must, should, would, and will.
Modals use the base verb
Use the base form of the main verb after a modal. Do not use to after most modals.
- can speak
- must go
- should review
Main Rules
Modal verbs do not take -s and form questions by moving before the subject.
No third-person -s
Use the same modal form with every subject.
- I can help.
- She can help.
Use not after the modal
For negatives, put not directly after the modal.
- You should not wait.
- He cannot come.
Patterns
Each modal has common meanings, but context matters.
Common modal meanings
| Modal | Meaning | Example |
|---|---|---|
| can/could | ability or permission | Can you explain it? |
| may/might | possibility | It might be correct. |
| must | strong obligation or certainty | You must use the base verb. |
| should | advice | You should practice more. |
| would | polite request or hypothetical meaning | Would you repeat that? |
Examples
Modals often make your meaning softer, stronger, or more precise.
You should check the word order.
Should gives advice.
This answer might be correct.
Might shows possibility.
She can understand native speakers.
Can shows ability.
Common Mistakes
The verb after a modal stays in base form.
She can speaks English.
She can speak English.
No -s after can.
You must to finish this exercise.
You must finish this exercise.
Do not use to after must.