Modals

Let's start with 'can' and 'could'. These modals express ability. For example, 'I can swim' shows what I can do. Can anyone tell me what 'could' indicates?

Is 'could' for past abilities?

That's correct! 'Could' refers to past abilities, like 'I could swim when I was younger.' Remember, 'can' is for now, and 'could' is for the past. So, can someone give me another example using 'can'?

I can play the guitar.

Excellent! You all seem to understand this well. So, let's summarize: 'can' is for present ability, while 'could' refers to past ability.

Now, let's talk about permission. We use modals 'may' and 'might' for formal permissions, and 'can' for informal permissions. For instance, 'You may leave' is more formal than 'You can leave'. Who can give an example of using 'may'?

You may use my pen.

Perfect! Now, onto possibility, which is where 'may' and 'might' also come into play. 'It may rain later' suggests a possibility. What’s the difference between 'may' and 'might' regarding certainty?

'May' is more certain than 'might'?

Exactly! 'May' indicates a stronger possibility than 'might'. Let's summarize: 'can' is used for informal permission, 'may' is for formal permission, and 'may' shows higher certainty than 'might'.

Moving on, let's discuss obligation. We use 'must' and 'have to' for obligations. For example, 'You must finish your homework' indicates a strong obligation. Can anyone think of when 'have to' might be more appropriate?

'Have to' is used in daily situations, right? Like, 'I have to go to work.'

Exactly! 'Must' feels stronger, while 'have to' is situational. Now, what about advice? We often use 'should' or 'ought to' for this. For instance, 'You should study harder.' Can someone give me an alternative using 'ought to'?

You ought to eat more vegetables.

Great example! Let's conclude: 'must' and 'have to' express obligation, while 'should' and 'ought to' provide advice.

Finally, let’s look at 'will' and 'would'. 'Will' indicates future intentions, like 'I will meet you tomorrow.' Can someone tell me a polite way to make a request using 'would'?

'Would you please pass the salt?'

Exactly! 'Would' is the polite form that implies a request. It can also express habits in the past, like 'I would walk to school every day.' What should we remember about 'will' and 'would'?

'Will' is for future predictions, and 'would' is for polite requests or past habits?

Correct! So our summary: 'will' expresses future intention, while 'would' is used for polite requests and indicating habitual actions in the past.