In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the option corresponding to it. If the sentence is free from error, click the 'No Error' option. At the age of fifteen(P)/, I knew I have found a(Q)/  best friend in my mother(R)/ No error (S)?

Option 2 : Q

The error lies in part Q of the question. Therefore the correct answer is option 2.

In the given sentence, the present perfect tense form of the verb is used (has/have+ past participle form of the verb) i.e. 'have found'. Present perfect tense is used when an action is completed in the present time. For eg. Pooja has won the award. She has submitted her project.

But here, the phrases 'at the age of fifteen' and 'I knew' show that the given sentence is talking about a past event that had started in the past and was completed in the past itself and therefore, the past perfect tense form of the verb will be used (i.e. had+ past participle form of the verb). The action of 'finding a best friend in my mother' was something the subject 'I' had already completed in the past at the age of fifteen.

Correct Sentence- At the age of fifteen, I knew I had found a best friend in my mother.