How do modal verbs affect the meaning of sentences in English?

Key Facts

• Modal verbs express attitudes toward the action of the verb.
• Common modal verbs include: can, could, may, might, must, shall, should, will, would.
• They do not change form according to the subject (e.g., I can, he can).
• Modals can indicate various degrees of certainty (e.g., 'might' implies less certainty than 'must').

Examples or Use Cases

• 'She can swim.' (ability)
• 'You must see this movie.' (necessity)
• 'He may come to the party.' (possibility)

FAQs

• What is the difference between 'must' and 'have to'? 'Must' implies obligation from the speaker; 'have to' indicates external obligation.

• Can modal verbs be used in questions? Yes, modal verbs are commonly used to form questions, e.g., 'Can you help me?'