Question

he gave me an useful idea. spot the error​

Answer 1

The error in the following sentence is that  instead of 'an', 'a' should be written.

• The sentence will correctly be written as : He gave me a useful idea.
• Both a and an are articles which are used commonly in the English language.
• The articles 'a/an' are used when referring to a common thing. On the other hand, the article 'the' is used when referring to a specific thing.