Writing prompt: Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay. Assume you are Tina; introduce your Monday routine to everyone. Writing hints: get up; have breakfast; go to school; begin; have lunch; go home.

Student essay:
Hello, everyone! I'm Tina. Last Mondy, I was every busy. In the morning, I got up at 7:30. Then I had breakfast at 8:00. After read a book, I was go to school. At 10:00, I drew a pictures. At 12:30, I began to have a lunch. After lunch, I was play a ball with my friends. Then I played toy. I went home at 4:00. What a busy day!

Corrected essay:
Hello, everyone! I'm Tina. Last Monday, I was very busy. In the morning, I got up at 7:30. Then I had breakfast at 8:00. After reading a book, I went to school. At 10:00, I drew a picture. At 12:30, I began to have lunch. After lunch, I played ball with my friends. Then I played with a toy. I went home at 4:00. What a busy day!

Error analysis:
error_sentence: Last Mondy, I was every busy.
correct_sentence: Last Monday, I was very busy.
error: Mondy
correction: Monday
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: The correct spelling for the proper noun 'Monday' is 『Monday』, therefore there is a spelling error here; 〈Mondy〉 should be changed to 『Monday』 to conform to English spelling conventions.

error_sentence: Last Mondy, I was every busy.
correct_sentence: Last Monday, I was very busy.
error: every
correction: very
error_type: PoS Confusion Error
error_severity: 3
error_description: PoS Confusion Error: According to its part of speech, 〈every〉 is an adjective, misused here as an adverb, thus there is a morphology error; semantically, the adverb 『very』 is needed to modify the adjective 〈busy〉, forming 『very busy』 to express degree, so 〈every〉 should be changed to 『very』 to comply with English grammar rules.

error_sentence: After read a book, I was go to school.
correct_sentence: After reading a book, I went to school.
error: read
correction: reading
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, a preposition must be followed by a gerund form; the original phrase 〈After read〉 contains a nonfinite verb form error; 〈read〉 needs to be changed to 『reading』 to comply with English grammar rules.

error_sentence: After read a book, I was go to school.
correct_sentence: After reading a book, I went to school.
error: was go
correction: went
error_type: Auxiliary Error
error_severity: 3
error_description: Auxiliary Error: According to the context, the action occurred last Monday, so the simple past tense of the verb is required; the original phrase 〈was go〉 contains an auxiliary verb usage error and is not the correct simple past tense form of 'go'; 〈was go〉 needs to be changed to 『went』 to fit the context's tense and voice.

error_sentence: At 10:00, I drew a pictures.
correct_sentence: At 10:00, I drew a picture.
error: pictures
correction: picture
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: According to English grammar rules, the indefinite article 'a/an' must be followed by the singular form of a countable noun; the original phrase 〈a pictures〉 contains a noun number error; 〈pictures〉 needs to be changed to 『picture』 to comply with English grammar rules.

error_sentence: At 12:30, I began to have a lunch.
correct_sentence: At 12:30, I began to have lunch.
error: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English usage, 'have lunch' is a fixed phrase for 'eating lunch', and no determiner is needed before 'lunch'; the original phrase 〈have a lunch〉 is a determiner error; 〈have a lunch〉 needs to be changed to 『have lunch』 to conform to English usage customs.

error_sentence: After lunch, I was play a ball with my friends.
correct_sentence: After lunch, I played ball with my friends.
error: was play a
correction: played
error_type: Auxiliary Error
error_severity: 5
error_description: ① Auxiliary Error: According to the context, this indicates an action that happened in the past, requiring the simple past tense of the verb; the past continuous structure 〈was play〉 is incorrect; 〈was play〉 needs to be changed to the simple past tense 『played』 to fit the context's tense; ② Determiner Error: 'play ball' is a fixed English phrase for 'playing ball', and no article is needed before the word for the ball type; 〈a〉 should be deleted to conform to English usage customs.

error_sentence: Then I played toy.
correct_sentence: Then I played with a toy.
correction: with a
error_type: Preposition Error
error_severity: 4
error_description: ① Preposition Error: According to English grammar rules, when expressing 'playing with a specific object', the preposition 'with' is needed after the verb 'play' and before the specific object; the specific object here is 'toy'; the original phrase 〈played toy〉 has a missing preposition; 〈played toy〉 needs to be changed to 『played with toy』 to comply with English grammar rules; ② Determiner Error: According to English grammar rules, a singular countable noun requires a determiner before it; here it refers to 'a toy'; the original sentence lacks the indefinite article 'a' to specify 'toy'; 〈played with toy〉 needs to be changed to 『played with a toy』 to comply with English grammar rules.