4. Expressing knowledge or lack thereof

Objetivos
EXPRESSING KNOWLEDGE AND LACK OF IT
How do you say you know something, other than saying "I know"?
- To be knowledgeable about something (knowing a lot about many different subjects or about one particular subject)
- To be informed (having a lot of knowledge or information about something)
- To be clued up about something (informal: knowing about a particular subject)
- To be conversant with something (formal: if you are conversant with something, you know about it and understand it)
- To be au fait (to be informed of the most recent facts or information about something)
- To be acquainted with something (to know about something)
- To be familiar with something (you know about something because you have learnt about it or experienced it before)
Source: https://www.macmillandictionary.com/thesaurus-category/british/knowing-and-knowing-about-something
How do you say you don't know anything, other than saying "I don't know"?
- I have no idea/I haven't (got) a clue/I haven't the faintest (foggiest) idea
These expressions are used when you have no information and you cannot guess the answer to a question
'What time does the film start?' 'I have no idea. Why don't you call the cinema?'
'Would you by any chance know where St James's Street is?' 'I haven't (got) a clue. Sorry.'
'Could somebody please explain how this happened?' 'I haven't the faintest idea.'
I'm sorry I haven't a clue.
- How should I know?/Don't ask me/Search me
These expressions are used when you do not know something, and you feel annoyed that someone is asking you about it.
'Who left this mess on the table?' 'How should I know? I've only just come home.'
'What time did she say she was catching her train? ' 'Don't ask me. I'm always the last to know.'
'Why didn't he ask you for the keys?' 'Search me. I'm not a mind reader.'
- Who knows?/It's anyone's guess
These are used for saying that you don't know something because it is impossible for anyone to know it:
'Will they ever find the missing aircraft?' 'Who knows? The search been going on for such a long time now.'
'How the situation will develop from here is anyone's guess.'
- Your guess is as good as mine
This is used for saying that you know as little about something as the person who asked you about it
'Do you think we will be able to book the restaurant for Friday?' 'Your guess is as good as mine.'
- Not as far as I know
We use this to say that something may be true, but you do not have enough information to know whether it is or not
'Has Clive left the company? I haven't seen him for ages.' 'Not as far as I know, but I haven't seen him recently either.'
- It beats me
This is a rather informal expression to say that you do not know or understand something. "It" is often left out.
'Why did he do such a stupid thing?' 'It beats me'
Source: https://englishwithatwist.com/2014/03/31/english-skills-7-ways-of-saying-i-dont-know/

Caso práctico
Choose 5 expressions from the above list. Write your own conversations using the expressions of your choice. Record yourself and listen to your recording. Do you sound convincing? Check your sentences with your peers and/or your tutor to review correctness.
Here's an example:
a. I've been invited to a concert this weekend. Do you want to tag along?
b. What sort of concert?
a. It's a jazz concert in the park in the Jebel Ali district. Do you know where it is?
b. Nope, not the foggiest.
a. Don't worry, I'll come and get you.