Narrative Tenses (Past Simple, Past Continuous, Past Perfect, Past Perfect Continuous) – English Grammar Exercises for B2

1  (b) had been working

• Why it is correct: Past Perfect Continuous. It emphasizes an ongoing, unproductive process that had been happening continuously (“for eight months”) before the candidate took over.
• Error Analysis: (a) was working (Common Mistake – ignores the duration marker); (c) worked (Meaning Trap – lacks the emphasis on accumulated time); (d) has been working (Structural Error – shifts to present tense).

2  (c) had completely misunderstood

• Why it is correct: Past Perfect. Describes a state or action fully completed in the past (the previous manager’s misunderstanding) that led to the mess the candidate discovered later.
• Error Analysis: (a) completely misunderstood (Common Mistake – fails to show the action happened before the candidate’s review); (b) was completely misunderstanding (Structural Error – ‘misunderstand’ is rarely used in continuous form); (d) has completely misunderstood (Structural Error).

3  (c) was threatening

• Why it is correct: Past Continuous. Sets the urgent background scene happening at the exact moment the candidate joined the project.
• Error Analysis: (b) threatened (Common Mistake – loses the sense of an ongoing, immediate crisis); (a) had threatened (Meaning Trap – implies the threat was already over, removing the immediate tension); (d) threatens (Structural Error).

4  (c) had missed

• Why it is correct: Past Perfect. The root cause (missing deadlines) happened entirely before the candidate arrived.
• Error Analysis: (a) was missing (Structural Error – missing a deadline is a momentary event, not continuous); (b) missed (Common Mistake); (d) had been missing (Meaning Trap – because a specific number of completed events—”three deadlines”—is mentioned, the simple perfect form is required over the continuous).

5  (c) were debugging

• Why it is correct: Past Continuous with “while”. Indicates a background action (debugging) that was in progress when another action (interviewing) took place.
• Error Analysis: (a) debugged (Common Mistake); (b) had debugged (Meaning Trap – logically flawed; if they had already finished debugging, they couldn’t be interviewed while doing it); (d) had been debugging (Structural Error).

6  (b) had been using

• Why it is correct: Past Perfect Continuous. The use of the outdated framework was an ongoing process from the beginning of the project up until the candidate discovered it.
• Error Analysis: (a) was using (Common Mistake – fails to capture the extended timeline); (c) used (Meaning Trap); (d) had used (Structural Error – lacks the emphasis on a continuous, unbroken habit).

7  (c) scheduled

• Why it is correct: Past Simple. Shifting to the “Action” phase of the STAR method, Past Simple is used to list decisive, chronological problem-solving steps.
• Error Analysis: (b) had scheduled (Meaning Trap – distorts the chronological timeline); (a) was scheduling (Common Mistake – weakens the impact of a decisive action); (d) schedule (Structural Error).

8  (c) was presenting

• Why it is correct: Past Continuous. The action of presenting provides the background context during which a sudden observation (noticed) was made.
• Error Analysis: (a) presented (Common Mistake); (b) had presented (Meaning Trap – if the presentation was already over, the actions wouldn’t be simultaneous); (d) had been presenting (Structural Error).

9  (c) had been trying

• Why it is correct: Past Perfect Continuous. The engineer’s struggle to speak up happened continuously and fruitlessly (“for months”) before the candidate finally listened.
• Error Analysis: (a) was trying (Common Mistake); (b) tried (Meaning Trap); (d) tries (Structural Error).

10  (b) hadn’t been communicating

• Why it is correct: Past Perfect Continuous. Highlights that the lack of communication was an ongoing, prolonged issue before the candidate’s intervention.
• Error Analysis: (a) weren’t communicating (Common Mistake – misses the sequence of past events); (c) didn’t communicate (Meaning Trap); (d) haven’t been communicating (Structural Error).

11  (b) established

• Why it is correct: Past Simple. Another decisive, completed leadership action.
• Error Analysis: (a) was establishing (Common Mistake); (c) had established (Meaning Trap – wrong timeline); (d) have established (Structural Error).

12  (c) was testing

• Why it is correct: Past Continuous after “while”. The ongoing action of testing was interrupted by the sudden server crash.
• Error Analysis: (a) tested (Common Mistake); (b) had tested (Meaning Trap); (d) tests (Structural Error).

13  (c) had implemented

• Why it is correct: Past Perfect. The preventive action was completed before the crash happened (“just the night before”), saving the project.
• Error Analysis: (a) implemented (Common Mistake – fails to establish the cause-and-effect timeline); (b) was implementing (Meaning Trap – if it was incomplete, the data would have been lost); (d) had been implementing (Structural Error – setting up a protocol is a definitive action, not an ongoing process here).

14  (a) resumed

• Why it is correct: Past Simple. The structure “As soon as + Past Simple, Past Simple” shows two consecutive past actions happening back-to-back.
• Error Analysis: (b) were resuming (Common Mistake); (c) had resumed (Meaning Trap); (d) had been resuming (Structural Error).

15  (c) had improved

• Why it is correct: Past Perfect. The time marker “By the end of the second week” establishes a past deadline. By that point, the improvement was a completed reality.
• Error Analysis: (a) improved (Common Mistake – lacks the auxiliary verb needed with “By the time/end” phrases); (b) was improving (Meaning Trap); (d) has improved (Structural Error).

16  (b) had been sending

• Why it is correct: Past Perfect Continuous. The client repeatedly and continuously sent angry emails over a period of time before their attitude suddenly shifted.
• Error Analysis: (a) sent (Common Mistake); (c) was sending (Meaning Trap – doesn’t encompass the accumulated history of emails prior to the change); (d) has sent (Structural Error).

17  (c) were already sitting

• Why it is correct: Past Continuous. Describes the visual background scene at the moment the team entered the room to deliver the prototype.
• Error Analysis: (b) had already sat (Meaning Trap – while grammatically possible, “were sitting” is much more natural to describe an ongoing state of waiting); (a) already sat (Common Mistake); (d) have already sat (Structural Error).

18  (b) had been working

• Why it is correct: Past Perfect Continuous. Emphasizes the exhausting, continuous effort (“over the last 48 hours”) leading right up to the final presentation.
• Error Analysis: (a) worked (Common Mistake); (c) were working (Meaning Trap); (d) have been working (Structural Error).

19  (c) had decided

• Why it is correct: Past Perfect. The stakeholders’ decision to hire someone else was finalized before the candidate took charge.
• Error Analysis: (a) were deciding (Common Mistake – downplays the severity; they had actually made up their minds); (b) decided (Meaning Trap); (d) have decided (Structural Error).

20  (a) taught

• Why it is correct: Past Simple. The final wrap-up of the story (the Result phase). The entire experience yielded a clear, definitive lesson.
• Error Analysis: (b) had taught (Meaning Trap – wrong chronological order, the lesson comes at the end); (c) was teaching (Common Mistake); (d) has taught (Structural Error – while Present Perfect can be used to connect past events to present knowledge, in the context of summarizing a purely past narrative sequence, Past Simple is the most standard).

When answering Behavioral Interview questions using the STAR Method (Situation – Task – Action – Result), weaving different past tenses together makes your story highly impactful and professional:

1. S & T (Situation & Task): Use the Past Perfect and Past Perfect Continuous to describe the mess you inherited. This shows the interviewer exactly how long and how badly the project had been failing before you stepped in (“The team had been missing deadlines for months…”).
2. The Immediate Crisis: Use the Past Continuous to paint the chaotic picture of what was happening at the exact moment you took charge (“The client was threatening to leave…”).
3. A (Action): When describing your own solutions, rely heavily on the Past Simple. It creates a fast, punchy rhythm that demonstrates decisive leadership and execution (“I scheduled a meeting,” “I implemented a protocol,” “I resumed the work”).
4. R (Result): Conclude with the Past Simple to state the final outcome, or use the Past Perfect with phrases like “By the time…” to highlight the immense progress achieved by a specific milestone (“By the deadline, morale had improved completely, and the experience taught me valuable leadership skills”).