Model Answer
0 min readIntroduction
The English language, as a crucial component of the Civil Services Examination, assesses a candidate’s ability to communicate effectively and precisely. Grammatical accuracy is paramount in conveying meaning clearly. The given sentence, "They didn't see any movies since March," contains a tense error. The use of 'didn't see' (past simple) with 'since March' (indicating a period continuing to the present) is incorrect. The correct tense to express an action that started in the past and continues to the present is the present perfect tense.
The corrected sentence is: They haven't seen any movies since March.
Explanation of the Correction
The original sentence uses the past simple tense ("didn't see"), which implies a completed action in the past. However, the phrase "since March" indicates that the period of not seeing movies extends from March until the present time. Therefore, the present perfect tense ("haven't seen") is the appropriate choice.
Understanding the Tenses
- Past Simple: Used for completed actions in the past. (e.g., "I saw a movie yesterday.")
- Present Perfect: Used for actions that started in the past and continue to the present, or for actions completed at an unspecified time in the past. (e.g., "I have lived here for ten years.")
Why "since" requires Present Perfect
The preposition "since" introduces a starting point in time. When used with the present perfect, it indicates that an action began at that point and continues up to now. For example:
- "She has worked at the company since 2010."
- "We haven't eaten anything since breakfast."
Alternative Correct Sentence Structures
While "They haven't seen any movies since March" is the most direct correction, other grammatically correct options exist:
- "They have not seen any movies since March." (More formal)
- "They haven't watched any movies since March." (Using 'watched' as a synonym for 'seen')
Conclusion
In conclusion, the correct sentence is "They haven't seen any movies since March," as it accurately employs the present perfect tense to convey a continuous period of not seeing movies from March until the present. Mastery of basic English grammar, particularly tense usage, is essential for effective communication and a strong performance in the UPSC examination.
Answer Length
This is a comprehensive model answer for learning purposes and may exceed the word limit. In the exam, always adhere to the prescribed word count.