5"In fact, he thinks there are certain benefits to having a non-native speaker as a language teacher."
I'm not sure what this sentence means, especially, why we're using 'to having' instead of 'to have' or 'of having'? Would you please explain it for me?
'To' is not part of a 'to'-infinitive in this sentence. Both 'in' and 'of' would be possible.
Here the use of 'benefits to having a ...' is similar to the 'to' in the following sentence?
"My trip to the south was of much benefit to my health."
Yes. The preposition is followed by a noun, pronoun or verbal noun (=gerund, 'ing'-form)
Student or Learner