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His father showed me all over his house, from the bedroom to the basement.

If 'all over his house' were omitted as:

His father showed me from the bedroom to the basement.

would it still sound natural?
Comments  
TakaHis father showed me from the bedroom to the basement.
It sounds natural to my 74-year-old native ear.

I'd say that the prepositional phrase "from x to y" is object of the verb.

It's an interesting question. It seems like "to show somebody around" is either a compound verb or an idiom.
I don't really think you can call "around" the object of the verb.
Nor does it seem like "somebody" is the object and "around" is the object complement.

I'd be happy to hear anyone's opinion on this structure. Emotion: happy - A.

Edit. I believe I hear "around" (optionally) in Taka's example:
His father showed me [around] from the bedroom to the basement.

Well, I keep changing my mind! I think there are two different forms: one with the "around" and one without it.

Without it, the prepositional phrase is the object of the verb. (He showed me under the house.)
(Show me inside your mouth.) I don't know if this is considered casual.
Hi,
His father showed me from the bedroom to the basement.

This sounds to me like a very old-fashioned way of saying
His father conducted me / led me from the bedroom to the basement.

It reminds me of old movies where the Duchess says to the butler, 'Show Lord Cive into the drawing room'.

Clive
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CliveThis sounds to me like a very old-fashioned way of saying
His father conducted me / led me from the bedroom to the basement.
Hi, Clive.
Do you find the OP's original similarly dated?
TakaHis father showed me all over his house, from the bedroom to the basement.
Thanks, - A.
Hi,

No, because 'show someone over a house' is a pretty standard phrase.

Clive
Such omission would suddenly make the original sound old-fashioned. Hmm...

Oh, by the way, Avangi, for some reason, or maybe because of the French passage you've put below your profile, I didn't think for a long time you were a native speaker of English, and I don't know why but I thought you were much younger!
Students: Are you brave enough to let our tutors analyse your pronunciation?
On the net we can be ageless - if we're careful.
AvangiOn the net we can be ageless - if we're careful.
And now you've gone and spilled the beans! Emotion: big smile

CJ