Wrong in ways I can’t be bothered to specify.
Everyone from your junior high English teachers to your ESL instructor has tried to explain the differences between gerunds and infinitives to you using logic and rules of thumb. We were just trying to make ourselves sound smart.
You accidently requested that the reader commit a human rights violation instead of informing them that one had happened. I don’t have time or space to explain that, so here’s a single letter instead.
Please stop writing according what 99% of your input implies are the rules for native-like English.
The teacher is willing to treat this as a language error, but secretly believes you wouldn’t notice if you suddenly had 3 cats instead of 1.
Wait 100 years or so until the 3rd person singular dies out and this will no longer be a problem.
In English clauses, you don’t need to show degrees of formality, gender, intention, or whether the information in it was learned directly or indirectly. However, you must always be clear when it happened (roughly divided into the past except when it’s relevant to the present, the present which isn’t really the present, and the future except in subordinate clauses) and remind the reader of that with each finite verb. We’ll just assume you know what a finite verb is and which ones they are.
As an ESL student, you are expected understand and apply metalanguage that native speakers need to complete at least 2 years of post-graduate work in linguistics for.
I won’t let you transfer or get your second Master’s degree in engineering until you show respect for conventions of writing that are present in only 0.01% of natural input.
Just giving you the answer would save us both time, but making you do the work allows me to claim that my marks are student-centered.
Your teacher consulted Google and confirmed that this comma should not be here. It might belong somewhere else. Google it.
We expect your use of conjunctions to be more correct than the New York Times.
(I hope it’s clear that I’m making fun of teachers including myself here and not learners)