The core idea — the long stretch of road
Imagine looking out of a train window. The fields, trees, and towns are not frozen — they are passing continuously as you travel. You are not capturing one photograph. You are watching a long, continuous scene unfold over time.
This is the second use of the Past Continuous. Instead of describing what was happening at one specific frozen moment, we use it to describe an action that was ongoing throughout a longer period in the past — not a single point, but a stretch of time: a summer, a year, a decade, a difficult chapter of life.
The action was not completed at one moment. It was in progress for the entire duration of the period being described. Think of it as the background music of a past era — always playing, always there, throughout that time.
The key difference from Past Simple
This is where students often hesitate. Both the Past Simple and the Past Continuous can be used with period expressions like that summer or during those years. The choice changes the meaning significantly.
Past Continuous — ongoing, in progress
She was living in Paris that year.
→ Living in Paris was her continuous situation throughout that whole year. It was the background of her life during that period.
Past Simple — completed, finished
She lived in Paris for a year.
→ She completed a period of living in Paris. The focus is on the fact that it happened and ended.
The Past Continuous focuses on the experience of being in the middle of the period — what it was like while it was happening. The Past Simple focuses on the fact that the period happened and ended.
How is it formed?
She was living in a tiny flat that whole first year.
They were traveling constantly throughout the 1990s.
He was writing short stories all through his twenties.
Affirmative sentences
- She was living in a tiny flat that whole first year after university.
- Throughout the summer, all the engineers were working around the clock.
- In those years, she was teaching English in small villages across rural Japan.
- While they were living in Berlin, they became fluent in German.
- During those difficult months, the whole family was struggling to pay the bills.
Negative sentences
She wasn't living in a flat — she was staying with her parents.
They weren't traveling — they were based in one city the whole decade.
- He wasn't studying for his exams — he was working part-time instead.
- She wasn't teaching English — she was teaching mathematics.
- They weren't rebuilding yet — they were still dealing with the immediate aftermath.
- He wasn't writing short stories — he was writing poetry instead.
- The children weren't struggling — they were too young to understand.
Interrogative sentences
Was she living in Paris that year? · Were they traveling throughout the 1990s?
Wh- questions: Question word + was / were + subject + verb-ing + ?
Where was she living that year? · What were they working on throughout the summer?
- Where was she living that first year after university?
- What were the engineers working on throughout the summer?
- Was he studying for his exams all that spring?
- What was she doing throughout her time in Japan?
- What were they building for three years before it opened?
Key time expressions for this use
Common mistakes to watch out for
✗ Throughout that difficult year, she worked two jobs.
✓ Throughout that difficult year, she was working two jobs.
Both are grammatically possible, but the meaning differs. The Past Simple she worked two jobs reports a fact — it happened and ended. The Past Continuous she was working two jobs evokes the experience — it emphasises what her life was like throughout that period, the continuous effort and strain. When a sentence is describing the texture of a past period rather than reporting a completed fact, the Past Continuous is more natural.
✗ Throughout those years, she was knowing everyone in the village.
✗ During that period, he was owning three properties.
✓ Throughout those years, she knew everyone in the village.
✓ During that period, he owned three properties.
Stative verbs (know, own, believe, want, love, hate, understand, remember, seem) cannot be used in any continuous form — even when describing an ongoing situation. If the verb describes a state rather than an active process, always use the Past Simple.
✗ She was living in Paris for five years. (if it has ended)
✓ She lived in Paris for five years. (completed, finished)
✓ She was living in Paris throughout that decade. (focus on the ongoing experience)
When the focus is simply on the total duration of a completed period — especially with for + number — the Past Simple is usually more natural. The Past Continuous with a period expression works better when you are describing what someone's life or situation was like during that time, not simply stating how long it lasted.
✗ Throughout that summer, they are working on the new system.
✓ Throughout that summer, they were working on the new system.
When describing a past period, the auxiliary must be in the past: was or were, not am/is/are. Time expressions like throughout that summer or during those years clearly signal the past — the verb must match.