Writing prompt: Stay at Home Alone

Student essay:
I stayed at home by myself once a time when I was seven years old.
One day,my mum told me that my grandpa was ill so she should take good care of him at home. So I should stay by myself for two days. I felt very excited and a little nervous. Nonetheless my mom looked so worried about me. Nonetheless I didn't care about her at that time. Nevertheless when my mum came out. I felt it was very easy for me. I can't cook for myself. So I bought some breakfast and dinner in supermarket. I also did the clock to ring loudly. So I haven't gone to school late. I also did some housekeeping after school. I also did a lot of wrong things: For example,when I tried to misrepresent some simple things,it was burnt. I was so worried that time that I swinged my mom's cup. Luckily,I remembered to operate the door when I came out. I feel lonely and sad at first,but I became fine a few days. I did everything by myself,And I also felt my mom was very hard. I praised
my mum's words very clean. When my mum came back, I was so happy to tell her that how great I am.
I think it is a perfect experience for myself. Anyway,after that I'm very proud of myself. I have remembered that how my mum loved me.

Corrected essay:
I stayed at home by myself once a time when I was seven years old.
One day, my mum told me that my grandpa was ill so she should take good care of him at home. Therefore, I had to stay by myself for two days. I felt very excited and a little nervous. Nonetheless my mom looked so worried about me. However, I didn't care about her at that time. When my mum went out, I felt it was very easy for me. I couldn't cook for myself. So I bought some breakfast and dinner in the supermarket. I also set the clock to ring loudly. So I didn't go to school late. I also did some housekeeping after school. I also did a lot of wrong things: for example, when I tried to cook some simple things, they were burnt. I was so worried at that time that I broke my mom's cup. Luckily, I remembered to lock the door when I went out. I felt lonely and sad at first, but I became fine after a few days. I did everything by myself. And I also felt my mom worked very hard. I appreciated my mum's efforts very much. When my mum came back, I was so happy to tell her how great I was.
I think it is a perfect experience for me. Anyway, after that I'm very proud of myself. I have remembered how much my mum loved me.

Error analysis:
error_sentence: So I should stay by myself for two days.
correct_sentence: Therefore, I had to stay by myself for two days.
error: So I should
correction: Therefore, I had to
error_type: Conjunction Error
error_severity: 4
error_description: ① Conjunction Error: 〈So〉 indicating a causal relationship is more suitable for spoken scenarios; in formal writing, 『Therefore』 should be used to connect the result, thus 〈So〉 is changed to 『Therefore,』 to comply with grammatical rules; ② Verb Choice Error: 〈should〉 expresses obligation, while the context indicates a need to express objective necessity, thus 〈should〉 is changed to 『had to』 to comply with grammatical rules.

error_sentence: Nonetheless I didn't care about her at that time.
correct_sentence: However, I didn't care about her at that time.
error: Nonetheless
correction: However,
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: 〈Nonetheless〉 has already been used in the preceding text; using 『However』 here is more in line with the contextual turning logic, and a comma needs to be added to maintain proper sentence structure, thus 〈Nonetheless〉 is changed to 『However,』 to comply with grammatical rules.

error_sentence: Nevertheless when my mum came out.
correct_sentence: When my mum went out, I felt it was very easy for me.
error: Nevertheless when
correction: When
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: 〈Nevertheless〉 and 〈when〉 are logically contradictory; the redundant transitional word should be deleted, thus 〈Nevertheless when〉 is changed to 『When』 to comply with grammatical rules.

error_sentence: Nevertheless when my mum came out.
correct_sentence: When my mum went out, I felt it was very easy for me.
error: came out.
correction: went out,
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈came out〉 means "appear", while describing the mother going out requires 『went out』, thus 〈came out〉 is changed to 『went out』 to correctly express the meaning.

error_sentence: I can't cook for myself.
correct_sentence: I couldn't cook for myself.
error: ca
correction: could
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: The entire text uses the past tense for narration; verbs need to be in the past tense, thus 〈ca〉 is modified to 『could』 to conform to the contextual tense.

error_sentence: So I bought some breakfast and dinner in supermarket.
correct_sentence: So I bought some breakfast and dinner in the supermarket.
correction: the
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: Specifically referring to a certain supermarket requires adding the determiner 『the』, thus 『the』 is added before 〈supermarket〉 to comply with grammatical rules.

error_sentence: I also did the clock to ring loudly.
correct_sentence: I also set the clock to ring loudly.
error: did
correction: set
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: The standard verb for setting an alarm clock is 『set』; 〈did the clock〉 violates English verb-object collocation habits, thus 〈did〉 is modified to 『set』 to correctly express the meaning.

error_sentence: So I haven't gone to school late.
correct_sentence: So I didn't go to school late.
error: haven't gone
correction: didn't go
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: This part narrates a past event; the verb needs to be in the past tense, thus 〈haven't gone〉 is modified to 『didn't go』 to conform to the contextual tense.

error_sentence: I also did a lot of wrong things: For example,when I tried to misrepresent some simple things,it was burnt.
correct_sentence: I also did a lot of wrong things: for example, when I tried to cook some simple things, they were burnt.
error: For
correction: for
error_type: Case Error
error_severity: 1
error_description: Case Error: When 『For example』 is used as an parenthetical phrase, the first letter does not need to be capitalized, thus 〈For〉 is modified to 『for』 to comply with writing conventions.

error_sentence: I also did a lot of wrong things: For example,when I tried to misrepresent some simple things,it was burnt.
correct_sentence: I also did a lot of wrong things: for example, when I tried to cook some simple things, they were burnt.
error: misrepresent
correction: cook
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈misrepresent〉 means "to distort facts", while this part means "cooking", thus 〈misrepresent〉 is modified to 『cook』 to correctly express the meaning.

error_sentence: I also did a lot of wrong things: For example,when I tried to misrepresent some simple things,it was burnt.
correct_sentence: I also did a lot of wrong things: for example, when I tried to cook some simple things, they were burnt.
error: it was
correction: they were
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: The preceding 〈things〉 is plural and needs to be referred to by 『they』, thus 〈it was〉 is modified to 『they were』 to comply with grammatical rules.

error_sentence: I was so worried that time that I swinged my mom's cup.
correct_sentence: I was so worried at that time that I broke my mom's cup.
correction: at
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: The correct fixed expression is 『at that time』, thus 『at』 is added before 〈that〉 to indicate a specific point in time.

error_sentence: I was so worried that time that I swinged my mom's cup.
correct_sentence: I was so worried at that time that I broke my mom's cup.
error: swinged
correction: broke
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: “swing” means “to sway”, which does not match the action of breaking a cup, thus 〈swinged〉 is modified to 『broke』 to correctly express the meaning.

error_sentence: Luckily,I remembered to operate the door when I came out.
correct_sentence: Luckily, I remembered to lock the door when I went out.
error: operate
correction: lock
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈operate the door〉 does not conform to English expression habits; to express the action of closing/locking a door, 『lock the door』 should be used, thus 〈operate〉 is modified to 『lock』 to correctly express the meaning.

error_sentence: Luckily,I remembered to operate the door when I came out.
correct_sentence: Luckily, I remembered to lock the door when I went out.
error: came
correction: went
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈came out〉 means "to come to the outside", while the subject leaving a place requires 『went out』, which aligns with the logic of movement direction, thus 〈came〉 is modified to 『went』 to correctly express the meaning.

error_sentence: I feel lonely and sad at first,but I became fine a few days.
correct_sentence: I felt lonely and sad at first, but I became fine after a few days.
error: feel
correction: felt
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: This part narrates a past event; the verb needs to be in the past tense, thus 〈feel〉 is modified to 『felt』 to conform to the contextual tense.

error_sentence: I feel lonely and sad at first,but I became fine a few days.
correct_sentence: I felt lonely and sad at first, but I became fine after a few days.
correction: after
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: When 〈a few days〉 functions as an adverbial of time, 『after』 needs to be added to form a complete prepositional phrase, indicating the temporal relationship, thus 『after』 is added before 〈a〉 to correctly express the meaning.

error_sentence: I did everything by myself,And I also felt my mom was very hard.
correct_sentence: I did everything by myself.
error: ,
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 〈I did everything by myself〉 and 〈And I also felt my mom was very hard〉 contain independent subject-verb structures and can be independent sentences, thus 〈,〉 is modified to 『.』.

error_sentence: I did everything by myself,And I also felt my mom was very hard.
correct_sentence: And I also felt my mom worked very hard.
error: was
correction: worked
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈was very hard〉 expresses a state; considering the context, 『worked』 should be used here to convey the dynamic meaning of "worked hard", thus 〈was〉 is modified to 『worked』 to correctly express the meaning.

error_sentence: I praised
my mum's words very clean.
correct_sentence: I appreciated my mum's efforts very much.
error: praised

correction: appreciated
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈praised words〉 does not conform to English expression habits; 『appreciated』 should be used to express gratitude, thus 〈praised〉 is modified to 『appreciated』 to correctly express the meaning.

error_sentence: I praised
my mum's words very clean.
correct_sentence: I appreciated my mum's efforts very much.
error: words very clean
correction: efforts very much
error_type: Noun Error
error_severity: 4
error_description: ① Noun Error: 〈words〉 refers to specific utterances, while the context requires expressing the abstract concept 『efforts』 (endeavors), thus 〈words〉 is modified to 『efforts』 to correctly express the meaning; ② Adverb Error: 〈very clean〉 is an incorrect collocation; the adverb of degree 『very much』 should be used to modify the verb, thus 〈clean〉 is modified to 『much』 to correctly express the meaning.

error_sentence: When my mum came back, I was so happy to tell her that how great I am.

correct_sentence: When my mum came back, I was so happy to tell her how great I was.

error: that
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy Error: In the object clause, 〈how〉 already introduces the clause; there is no need to add 〈that〉, thus 〈that〉 is deleted to standardize the sentence structure.

error_sentence: When my mum came back, I was so happy to tell her that how great I am.

correct_sentence: When my mum came back, I was so happy to tell her how great I was.

error: am
correction: was
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: This part narrates a past event; the verb needs to be in the past tense, thus 〈am〉 is modified to 『was』 to conform to the contextual tense.

error_sentence: I think it is a perfect experience for myself.
correct_sentence: I think it is a perfect experience for me.
error: myself
correction: me
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: The preposition 〈for〉 is followed by an object, requiring the objective pronoun 『me』; 〈myself〉 is only used for emphasis or when reflecting the performer of an action, thus 〈myself〉 is modified to 『me』 to comply with grammatical rules.

error_sentence: I have remembered that how my mum loved me.
correct_sentence: I have remembered how much my mum loved me.
error: that how
correction: how much
error_type: Word Redundancy Error
error_severity: 4
error_description: ① Word Redundancy Error: 〈that〉 and 〈how〉 redundantly introduce the clause, thus 〈that〉 is deleted to standardize the sentence structure; ② Other Error: This part emphasizes the extent of motherly love, thus 『much』 is added after 〈how〉 to correctly express the meaning.