Using an adverbial phrase between the object and the participle?

Question

There's been a gentleman here asking for you, sir.

As far as I know, In this form the participle always comes immediately after the object of the main clause.

After I saw this sentence above. A question came to my mind: Can I use an adverbial phrase between the object of the main clause and the participle clause? I think the question I quoted above does that.

For example:

1- I found him under the tree waiting for me.

2- I left my cat on my bed lying down.

3- Stream pushed the ducks along the riverside whistling to each other. (In the meantime, the ducks were whistling to each other.)

Answer 1

The problem with your examples is that each of those inserted phrases ends with a noun which precedes a participle clause and can combine with it, giving some false sense. With such a word order, an additional comma just after the noun could prevent from reading like: 'tree waiting for me', 'my bed lying down' and 'the riverside whistling'.