It was only late afternoon, but they'd been riding since early morning.

More than 50 million people have ridden it since opening.

I think I've spent half a season riding since the beginning of spring.

He has been riding since the age of two.

Baze has been riding since 1974, and he never seems to change.

She hadn't ridden him, even gently about the fields, since last summer.

"I've been riding since 1985," said one rider here last Sunday.

Due to an injury, Spielberg hasn't been riding since 1985.

He has been riding since 1996 when he was in the 7th grade.

We've been riding since last midnight and we're very tired.