According to Stern, the most intensive progress occurred "in the last two or three days."

Perhaps her most significant progress occurred because of a deceptively irrelevant item.

And if progress can occur here, then why not elsewhere?

The stunning progress in the talks occurred the weekend after that session.

A survey for a proposed route was made, but no further progress occurred.

Compared with 5 or 10 years ago, phenomenal progress has occurred.

There has been talk of restoration, but no progress has occurred.

This steady progress has occurred in the face of truly horrific violence.

In other words, we have been placed in a position to monitor how progress actually occurs.

These negotiations, in one form or another, have continued for over forty years, although progress toward agreement has occurred since 2007.