Some time ago I learned the difference between a present participle and a gerund, so today I decided to pass any online test to make sure I understand it.
I passed it having made only one mistake, which asked the difference between the two in this sentence:
Nobody was surprised at John being absent.
One needed to choose between present participle and gerund in reference to the word being.
I chose present participle because the word being here plays a role of an adjective apart from a verb.
I thought that if it had read John's being, then the word would have been a participle because it would be a noun in a form of a verb.
I know, this question is a duplicate and I agree that it should be closed, but I just would like to find out whether it was me who made a mistake or whether it was the website that diddo.