Gerunds are words that end in -ing but are mainly used as nouns. In the given sentence, "Swimming against the current is just one of the challenging aspects of people participating in the triathlon will be facing", the gerund in the sentence is the word 'swimming'.
Bro I’m not going to write u a hole Essay but I’m going to tell u this think of a time where u and ur friend had a fight cuz of something u thought was different or u thought she was wrong about so yah lol sorry if it didn’t help but good luck
