Writing prompt: The weekend is coming. Classmates, what are you planning to do? Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay of about 60 words about your plans for the weekend.
Writing hints: be going to; do cleaning; visit grandparents; have a good time

Student essay:
The weekend is coming. I am very happy. And I having a weekend plan now. On Saturday, I am going to do my schoolwork in the morning. I don't like to do schoolwork, because it is to boring. In the afternoon, I will visit my grandparents. They are kind for me. On Sunday. I am going play soccer with my friend. We are a team in the school. In the afternoon, my family and I will clean our house.

Corrected essay:
The weekend is coming. I am very happy. And I have a weekend plan now. On Saturday, I am going to do my schoolwork in the morning. I don't like to do schoolwork, because it is too boring. In the afternoon, I will visit my grandparents. They are kind to me. On Sunday, I am going to play soccer with my friend. We are a team in the school. In the afternoon, my family and I will clean our house.

Error analysis:
error_sentence: And I having a weekend plan now.
correct_sentence: And I have a weekend plan now.
error: having
correction: have
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: According to English tense usage rules, 〈am having〉 is the present continuous structure, but the context here requires expressing the state or usual condition of 'having', not an ongoing action. The verb have needs to agree with the subject I, so the base form of the verb is used, changing 〈having〉 to 『have』 to form the correct subject-verb structure 〈I have〉.
error_sentence: I don't like to do schoolwork, because it is to boring.
correct_sentence: I don't like to do schoolwork, because it is too boring.
error: to
correction: too
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English part-of-speech distinction principles, 〈to〉 is a preposition (used in infinitives) or a directional preposition, whereas the context here requires an adverb of degree to modify the adjective 〈boring〉 to mean 'excessively boring', thus requiring the adverb 『too』. Therefore, the incorrect 〈to〉 is corrected to 『too』, forming the correct collocation 『too boring』.
error_sentence: They are kind for me.
correct_sentence: They are kind to me.
error: for
correction: to
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to English adjective collocation rules, the adjective 〈kind〉 requires the preposition 〈to〉 to follow, forming the standard structure 'be kind to someone', meaning 'friendly towards someone'. The original sentence incorrectly uses 〈for〉, which does not fit this fixed phrase, so 〈for〉 must be corrected to 『to』 to form the standard expression 『kind to』.
error_sentence: On Sunday.
correct_sentence: On Sunday, I am going to play soccer with my friend.
error: .
correction: ,
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English sentence structure rules, when the time adverbial 〈On Sunday〉 is placed at the beginning, it must be separated from the main clause by a comma. The original sentence incorrectly uses a period, fragmenting the time adverbial into an independent piece; the period needs to be changed to 『,』 to form the correct adverbial structure 『On Sunday,』, ensuring the integrity and coherence of sentence components.
error_sentence: I am going play soccer with my friend.
correct_sentence: On Sunday, I am going to play soccer with my friend.
correction: to
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English future tense expression rules, the structure 〈be going to〉, used as a future auxiliary, must be followed by an infinitive with 『to』, i.e., to + base verb. The original sentence is missing the infinitive marker 『to』; it needs to be added before 〈play〉 to form the complete grammatical structure 『am going to play』.