Writing prompt: My Summer Vacation

Student essay:
My summer vacation was so exciting. I finished my homework. Then I go to swimming every day. But in the summer vacation,my classmate invited me to went to play in the park. I went to park on the morning. The air feeled clear. So I feel very comfortable. We played in the park and running in laugh. We hadn't met for a long time,so I feel wonderful. In the afternoon,we had a great meal. It's a really good day!

Corrected essay:
My summer vacation was so exciting. I finished my homework. Then I went swimming every day. But in the summer vacation, my classmate invited me to go to play in the park. I went to the park in the morning. The air felt clear. So I felt very comfortable. We played in the park and ran with laughter. We hadn't met for a long time, so I felt wonderful. In the afternoon, we had a great meal. It was a really good day!

Error analysis:
error_sentence: Then I go to swimming every day.
correct_sentence: Then I went swimming every day.
error: go to
correction: went
error_type: Word Redundancy Error
error_severity: 3
error_description: ① Verb Tense Error: According to English grammar rules, the tense of the verb 〈go〉 should be consistent with the past time adverbial 〈Then〉, therefore 〈go to〉 is modified to 『went』 to conform to the past tense expression; ② Word Redundancy: According to English expression habits, "go swimming" is a fixed phrase, already containing the meaning of action, and does not require the preposition 〈to〉; 〈to〉 in the original sentence is redundant and should be deleted.

error_sentence: But in the summer vacation,my classmate invited me to went to play in the park.
correct_sentence: But in the summer vacation, my classmate invited me to go to play in the park.
error: went
correction: go
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, the verb 〈invited〉 is followed by an infinitive as an object complement, and the infinitive structure should be 〈to + base form of the verb〉. In the original sentence, 〈went〉 in 〈to went〉 is in the past tense, which does not conform to the infinitive grammar rules, therefore 〈went〉 needs to be changed to 『go』 to meet the grammatical requirements of the infinitive in nonfinite verbs.

error_sentence: I went to park on the morning.
correct_sentence: I went to the park in the morning.
error: park on
correction: the park in
error_type: Preposition Error
error_severity: 2
error_description: ① Determiner Error: According to English grammar rules, 〈park〉 is a singular countable noun, and when referring to a specific park, 『the』 needs to be added; it was not added in the original sentence, therefore 〈park〉 is changed to 『the park』; ② Preposition Error: According to English expression habits, the fixed phrase is 〈in the morning〉; 〈on〉 in the original sentence is used incorrectly, and 〈on the morning〉 should be changed to 『in the morning』 to conform to idiomatic expression.

error_sentence: The air feeled clear.
correct_sentence: The air felt clear.
error: feeled
correction: felt
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the meaning of the sentence, it is intended to express "the air felt clear", therefore 〈feeled〉 is a misspelling of the past tense of the verb 『felt』, and 〈feeled〉 needs to be modified to 『felt』 to make the sentence coherent.

error_sentence: So I feel very comfortable.
correct_sentence: So I felt very comfortable.
error: feel
correction: felt
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to the context, the preceding time adverbial 〈The air felt clear〉 used the past tense, and the tense of the verb 〈feel〉 should be consistent with it, therefore 〈feel〉 is modified to 『felt』 to conform to the past tense expression.

error_sentence: We played in the park and running in laugh.
correct_sentence: We played in the park and ran with laughter.
error: running in laugh
correction: ran with laughter
error_type: Verb Tense Error
error_severity: 3
error_description: ① Nonfinite Verb Form Error: According to English grammar rules, the parallel verb 〈played〉 is in the past tense, and the following verb should also be in the past tense, not the present participle 〈running〉, therefore 〈running〉 is changed to 『ran』; ② Preposition Error: According to English expression habits, 〈with laughter〉 is a fixed phrase, meaning "laughing"; the original phrase 〈in laugh〉 does not conform to idiomatic expression and should be changed to 『with laughter』.

error_sentence: We hadn't met for a long time,so I feel wonderful.
correct_sentence: We hadn't met for a long time, so I felt wonderful.
error: feel
correction: felt
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to the context, the preceding time adverbial 〈The air felt clear〉 used the past tense, and the tense of the verb 〈feel〉 should be consistent with it, therefore 〈feel〉 is modified to 『felt』 to conform to the past tense expression.

error_sentence: It's a really good day!
correct_sentence: It was a really good day!
error: 's
correction: was
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to the context, the sentence describes past events, and 〈It’s〉 is a present tense contraction (is), which does not meet the past tense requirement. Change 〈It’s〉 to 『It was』 to conform to past tense expression.