And the pig was moving well under its own power when it had passed me.

Occasionally he would look over at the thing as if to make certain it had not moved under its own power.

This was, after all, a machine that could move under its own power.

"I've never seen anything this large that moved under its own power."

It wouldn't be able to move at all under its own power.

The craft then moved across the water under its own power.

She was still weak, but moving under her own power now.

For the first time in days, Toni had to move under his own power.

The boat had very clearly never been moved under its own power.

She must have moved under her own power, but to where?