the word "keen"

[adydean]

Can I use keen to show expression that ones/groups of peoples are not care about something(s)... or do not take seriously for something(s)...
For example, they are not really keen to take education seriously...... or he not really keen to go work today...
Also can it use in formal essay (IELTS)?

 

[emsr2d2]

re: the word "keen"

Can I use keen to show [STRIKE]expression[/STRIKE] that [STRIKE]ones[/STRIKE] someone/groups of people[STRIKE]s[/STRIKE] [STRIKE]are[/STRIKE] do not care about something[STRIKE](s)[/STRIKE] or do not take something seriously? [STRIKE]for something(s)...[/STRIKE]
For example, they are not really keen to take education seriously, or he is not really keen to go work today.
Also canit be used in formal essays (IELTS)?

You can use it to show that they are not excited about something or they don't like something very much. It doesn't mean the same as "they don't care about something".

They are not keen on education = They don't like education very much.
He is not really keen to go to work today = He doesn't really want to go to work today.

Look at the amendments I made to your post in red. Don't use the multiple full stops (...) - they have a specific use and you weren't using them correctly.

 

[Rover_KE]

I have edited your title.

We don't say 'the word of keen' and follow it with five full stops.

Rover