Select the option that has used the correct tense.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. He realised he had forgotten his keys after he had left the house.
Error concept: Incorrect use of past perfect tense in earlier options.
What is wrong: The verb “leave” is incorrectly used in options 1 and 2. Option 3 uses “was left,” which changes the meaning and is grammatically incorrect.
Grammatical concept:
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Past perfect tense (had + past participle) is used to indicate an action completed before another past action.
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Here, leaving the house happened before realizing he forgot the keys, so “had left” is correct.
Incorrectness of the concept in context: Using “has leave,” “had leave,” or “was left” does not correctly indicate the sequence of past actions.
How to correct: Use “had left” to properly reflect the past perfect tense.
Correct phrase/ correction: had left the house
Final sentence: He realised he had forgotten his keys after he had left the house.
Hence, the chosen option is correct.