Writing prompt: How Do You Study English?

Student essay:
There are there good ways to study English.
I think you should look up new words in a dictionary,take notes by writing down key words and by reading your notes every day.
If you do this,you will improve English.
I think learning grammar is a good way to study English.
I study English by watching English movies so you can also have a try.
It is also a good idea to by asking the teacher for help,because you'll have a lot of places you don't understand.
You could try to improve your English by memorizing sentence patterns.
This will help you to learn English better!

Corrected essay:
There are three good ways to study English.
I think you should look up new words in a dictionary, take notes by writing down key words and read your notes every day.
If you do this, you will improve your English.
I think learning grammar is a good way to study English.
I study English by watching English movies so you can also have a try.
It is also a good idea to ask the teacher for help, because you'll have a lot of places you don't understand.
You could try to improve your English by memorizing sentence patterns.
This will help you to learn English better!

Error analysis:
error_sentence: There are there good ways to study English.

correct_sentence: There are three good ways to study English.

error: there
correction: three
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the original sentence meaning, it intends to express 'three methods', requiring an ordinal number to represent the quantity 'three'. The correct spelling for the English ordinal number 'three' is 'three'; a spelling error exists here, so 〈there〉 needs to be changed to 『three』 to conform to the original meaning and word spelling norms.
error_sentence: I think you should look up new words in a dictionary,take notes by writing down key words and by reading your notes every day.

correct_sentence: I think you should look up new words in a dictionary, take notes by writing down key words and read your notes every day.

error: by reading
correction: read
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English syntactic rules, when the conjunction 'and' connects verb phrases in a sentence, their tenses need to be consistent, and the components must maintain parallel structure. Based on the context, the original phrases 〈look up〉, 〈take notes〉, and 〈by reading〉 are parallel structures following 〈should〉, requiring the use of the base form of the verb. Therefore, 〈by reading〉 needs to be changed to 『read』 to conform to English syntactic rules.
error_sentence: If you do this,you will improve English.

correct_sentence: If you do this, you will improve your English.

correction: your
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English grammar rules, when referring to a specific language name, a determiner is usually needed for specification. According to the original sentence meaning, it intends to express 'improve your English'; a missing determiner error exists here. 『your』 needs to be added after 〈improve〉 to clarify the 'object' of improvement, making the sentence meaning complete and conforming to grammar rules.
error_sentence: It is also a good idea to by asking the teacher for help,because you'll have a lot of places you don't understand.

correct_sentence: It is also a good idea to ask the teacher for help, because you'll have a lot of places you don't understand.

error: by asking
correction: ask
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, the fixed phrase 'It is a good idea to do something' means 'doing something is a good idea'. Therefore, a nonfinite verb form error exists here; 〈by asking〉 needs to be changed to 『ask』 to form an infinitive to conform to English grammar rules.