Writing prompt: Sweeping Snow

Student essay:
Sunday, January 12
Tis morning, when I opened the curtain, I saw snowing outside. I saw everything turned white. It was so beautiful that I wanted to take some photos to record the beautiful time.
Then, I took my camera and went out. After I took some photos. On my way home there was a man in front of me. Suddenly he fell down. So I picked him up immediately.
So I went home and brought a broom to swept the snow on the road in order to let the other person fell down again.
Lastly, the road was cleaned by myself. I was so glad that no one fell down again and many people praised me and said I am a good boy.

Corrected essay:
Sunday, January 12
This morning, when I opened the curtain, I saw it was snowing outside. I saw everything turned white. It was so beautiful that I wanted to take some photos to record the beautiful time.
Then, I took my camera and went out. After I took some photos, on my way home there was a man in front of me. Suddenly he fell down. So I picked him up immediately.
So I went home and brought a broom to sweep the snow on the road in order to let other people not fall down again.
Lastly, the road was cleaned by myself. I was so glad that no one fell down again and many people praised me and said I am a good boy.

Error analysis:
error_sentence: Sunday, January 12
Tis morning, when I opened the curtain, I saw snowing outside.
correct_sentence: Sunday, January 12
This morning, when I opened the curtain, I saw it was snowing outside.
error: Tis
correction: This
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the sentence meaning, the intention here is to express “this morning”; 〈Tis〉 does not conform to standard English spelling rules. The correct spelling should be 『This』; modifying 〈Tis〉 to 『This』 makes the sentence conform to English grammar and writing norms when expressing the time adverbial, and the meaning is clear and accurate.
error_sentence: Sunday, January 12
Tis morning, when I opened the curtain, I saw snowing outside.
correct_sentence: Sunday, January 12
This morning, when I opened the curtain, I saw it was snowing outside.
correction: it was
error_type: Sentence Structure Error
error_severity: 4
error_description: Sentence Structure Error: In the original sentence, the verb 〈saw〉 should be followed by a complete object clause, but 〈saw snowing outside〉 lacks a subject and a predicate verb, making the sentence structure incomplete. 『it was』 should be added to form “it was snowing outside” as the object clause, making the sentence structure complete and conforming to English grammatical rules.
error_sentence: After I took some photos. On my way home there was a man in front of me.
correct_sentence: After I took some photos, on my way home there was a man in front of me.
error: . On
correction: , on
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English grammar rules, the time adverbial clause 〈After I took some photos〉 and the main clause 〈On my way home there was a man in front of me〉 cannot be separated by a period. The period divides them into two independent sentences, disrupting the coherence of the sentence. A comma 『,』 should be used to connect them, changing 〈. On〉 to 『, on』, making the sentence structure complete and the expression fluent.
error_sentence: So I went home and brought a broom to swept the snow on the road in order to let the other person fell down again.

correct_sentence: So I went home and brought a broom to sweep the snow on the road in order to let other people not fall down again.

error: swept
correction: sweep
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, “to + base form of verb” constitutes an infinitive, often used to express purpose. In the original sentence “to swept”, 〈swept〉 is the past tense of the verb, which does not meet the structural requirements of an infinitive. Change 〈swept〉 to the base form of the verb 『sweep』, forming “to sweep”, which conforms to grammatical rules and accurately expresses the meaning “the purpose of bringing a broom is to sweep the snow”.
error_sentence: So I went home and brought a broom to swept the snow on the road in order to let the other person fell down again.

correct_sentence: So I went home and brought a broom to sweep the snow on the road in order to let other people not fall down again.

error: the other person fell
correction: other people not fall
error_type: Sentence Structure Error
error_severity: 4
error_description: ① Determiner Error: According to the collocation of English determiners and nouns, the original sentence intends to express “other people” and does not refer to a specific person, so 〈the〉 in 〈the other〉 needs to be deleted to conform to the original meaning; ② Noun Error: In the original sentence, 〈the other person〉 specifically refers to a singular individual, but from the contextual semantics, it is intended to refer to other people in general, with a broader scope. Therefore, 〈the other person〉 should be changed to the plural form 『other people』 to conform to the semantics the sentence intends to express; ③ Sentence Structure Error: The original phrase “to let the other person fell down again” is logically unclear; the actual intention is “to prevent other people from falling down again,” and it lacks a negative word. The negative word 『not』 should be added, forming “let other people not fall down again,” to make the sentence structure complete, logically clear, and conform to the expressive purpose.