Sentence- participle phrase...Thanks

Two sentences


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1)This letter is to confirm the details of your work experience placement as a Marketing Intern at Chrisco, reporting to Miranda.

Do you see the underlined words as a participle phrase modifying 'work experience placement'?

Or an appositive (gerund), in apposition to 'marketing intern at Chrisco?

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2)Daniel's uncle claimed that he spent most of his youth dancing on rooftops and swallowing goldfish.
Below is what a website said about the sentence above.

Here the co-ordinating conjunction "and" links two participle phrases ("dancing on rooftops" and "swallowing goldfish") which act as adverbs describing the verb "spends."


How can this be so? A participle phrase functions adjectivally; that is, it modifies nouns, not verbs.

I see it modifying the pronoun 'he.'......

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Thanks for your thoughts in advance.