It had been raining. -
We'd been walking all day. -
He'd been running for hours. -
How long had they been walking? -
I had been practicing for years. -
Dad hadn't been listening. -
She had been taking notes. -
He had been traveling for months. -
They had been talking about whales. -
Had he been sleeping? -
They had been walking for hours. -
How long had she been sleeping? -
How long had he been listening? -
You had been working too hard. -
He'd been working on it. -
They had been discussing robots -
Had she been crying? -
I had been looking for it. -
I had been running in circles. -
She had been reading the book. -