[bad word] /www.bbc.co.uk/worldservice/learningenglish/radio/specials/1223_gramchallenge9/
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Catherine's Grammar Explanation: Have something done:

Catherine:
Hi Raffaella! That's pretty good! Elena's going to make 2 improvements to the office.
First, she's having the walls painted, and second, she's going to have the carpets
cleaned.
We use 'have' with a noun and a past participle when we arrange for somebody to
make some kind of improvement to something for us. Elena has arranged for
somebody to clean the carpets next week, so she says:
Elena: I'm going to have the carpets cleaned tomorrow
She uses the future form of have – that’s going to have - with a noun – the
carpets – and the past participle of clean – which is cleaned.
There are a couple of things to remember when you use this [bad word]  First, you can
show tense by changing the form of 'have'. So, next week when Elena's carpets are
nice and clean, she can say:
Elena: I have just had the carpets cleaned.
And a few days later she could say:
Elena: I had the carpets cleaned last week.
Secondly, you don't have to say who is going to do it. Elena didn't say:
Elena: I'm going to have the walls painted by the painters.
It's enough to say:
Elena: I'm going to have the walls painted.
And finally, you can say 'get' instead of 'have' - the meaning is exactly the same, but
it's a little more informal. So Elena could say to her friend:
I'm getting the walls painted this afternoon.
Ok, that's all from me. Good luck with your grammar challenge!
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