Modal Verbs

Modal verbs are auxiliary verbs that express necessity, possibility, permission, or ability. Examples include can, could, may, might, must, shall, should, will, and would.

'Can' is used to express ability or possibility. For example, 'I can swim' means I have the ability to swim.

'Must' indicates a strong obligation or necessity. For example, 'You must wear a seatbelt' means it is required.

'Can't' indicates prohibition or impossibility. For example, 'You can't park here' means it is not allowed.

'May' is used to express permission or possibility. For example, 'You may leave early' means you are allowed to leave early.

'Might' suggests a lower possibility than 'may'. For example, 'It might rain tomorrow' indicates that there is a chance of rain.

'Should' implies a recommendation or advice. For example, 'You should study for the exam' means it is advisable to study.

'Have to' indicates an obligation or necessity, similar to 'must'. For example, 'I have to finish my homework' means it is necessary to finish it.

'Must' is often used for personal obligations, while 'have to' is used for external obligations. For example, 'I must go' (personal choice) vs. 'I have to go' (external requirement).

'Don't have to' indicates that there is no obligation. For example, 'You don't have to come if you don't want to' means attendance is optional.