Past perfect continuous

Use the past perfect continuous to emphasize the duration or repeated nature of an activity before a past point.

When do we use it?

Form had been plus verb-ing and distinguish activity from completed result.

Form

Use had been + verb-ing for an activity continuing up to or explaining a past situation.

• They had been waiting for an hour.
• The ground was wet because it had been raining.

Key contrast

At B2, choose the form from the complete context: sequence, viewpoint, degree of certainty and clause structure all matter.

Common mistakes

• They had waiting for hours. → They had been waiting for hours.
• It had been rained. → It had been raining.

Remember

Use the past perfect continuous to emphasize the duration or repeated nature of an activity before a past point.

Quick check

• Identify the time relationship or intended meaning.
• Check the auxiliary, participle and clause pattern.
• Eliminate answers that fit the words but not the context.