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Originally Posted by RonBee Quote: |
Originally Posted by tdol 4. He showed his father his sincerity by cooperating with all his teachers at school.
I don't see 'by co-operating...' as an object.  | Exactly what is it then if it is not an object?  |
"Cooperating" is a gerund, introducing a gerund phrase: gerund + two prepositional phrase modifiers. The gerund phrase is the object of the preposition "by".
This sentence would be: Subject-verb-indirect object-direct object (-adverb), IMO.