Choose the correct tense form of the underlined expression from the given options.

The train had left before we could reach the station.

Correct option is C

The correct answer is (c) Past Perfect.

• The expression "had left" is in the Past Perfect tense.
• The Past Perfect tense is used to describe an action that was completed before another action took place in the past.
• In the given sentence, "the train had left" (first action) occurred before "we could reach the station" (second action).
• The structure of the Past Perfect tense is:
  had + past participle (V3)
  Here, "had" + "left" (past participle of "leave") correctly forms the Past Perfect tense.

Thus, the tense form of "had left" is Past Perfect.

Information Booster

1. Past Perfect Tense Definition: Describes an action that was completed before another past action.
2. Formation: "had" + past participle (V3 form of the verb).
3. Usage Context: Used for clarity when narrating two actions in the past, ensuring that the earlier action is clearly indicated.

Additional Information

• (a) Past Indefinite:
  Incorrect — Past Indefinite (Simple Past) would use only the second form of the verb (e.g., "left" without "had"). It talks about actions completed in the past but does not relate two past actions' timing.
• (b) Past Continuous:
  Incorrect — Past Continuous (e.g., "was leaving") describes an ongoing action happening at a specific time in the past, which doesn't fit the completed-before-another-action context here.
• (d) Past Perfect Continuous:
  Incorrect — Past Perfect Continuous (e.g., "had been leaving") indicates an action that was ongoing over a period of time in the past before another action but is not appropriate here because "left" indicates completion.