The Man Vs Nature suits the best
Im sorry im not really good with part of speech xD
Gregor looked up from his desk and thought about going to sleep again. He knew that the way to heal from this particular virus he’d Found himself with was not to sleep but to sit awake. While Gregor sat impatiently at his chair looking up every occasion his wife Matilda was sicker than he was and had given up trying to fight off her virus. Gregor had no knowledge of her state because the doctors suggest the speak to each other as little as possible.
You can write from here
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The underlined term (flies) used verb+es which is used to describe the verb that still being doned regularly.
If the verb is currently being done , the verb will use-ing , if it's a plan in the future, we will see 'will' before the verb and the verb will not use -es
hope this helps