What are modal verbs?

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

How do you use 'must' in a sentence? Provide an example.

'Must' is used to express necessity or obligation. For example, 'You must complete your homework before going out.'

What is the difference between 'can' and 'may'?

'Can' indicates ability, while 'may' expresses permission. For example, 'I can swim' indicates ability, whereas 'May I leave the room?' asks for permission.

Rewrite this sentence using a modal verb: 'It is necessary for you to finish the project by Friday.'

'You must finish the project by Friday.' This sentence uses 'must' to express necessity.

Which modal verb would be appropriate in the following sentence? 'If you want to go outside, you ___ finish your chores first.'

'If you want to go outside, you must finish your chores first.' Here, 'must' indicates the obligation to finish chores before going outside.

What is the formula for using modal verbs in a sentence?

The formula is: Modal + Base Form of Verb. For example, 'I can play soccer.'

When should you use 'might' instead of 'may'?

'Might' is often used to indicate a lower probability than 'may'. For example, 'I may go to the party' suggests a possibility, while 'I might go to the party' suggests uncertainty.

Fill in the blank with the correct modal verb: 'You ___ be joking!'

'You must be joking!' This indicates a strong assumption or belief about the situation.

Identify the error in the sentence: 'He can to play the piano.'

The correct sentence is 'He can play the piano.' 'Can' should be followed directly by the base form of the verb without 'to'.

Which modal verb is used for polite requests? Provide an example.

'Would' is often used for polite requests. For example, 'Would you pass the salt, please?'