In the early 20th century, the holding frequently changed hands.

In many of your programs, you will want to use data values which do not change frequently.

Call up for the opening hours since they change frequently.

That said, the menu is changed frequently, often for the better.

The action frequently changes direction as characters pass each other on the street.

They may also be changed frequently without changing the running key book).

Since these sites seem to change frequently, we will not list links.

These postal rates changed frequently, and new services were added over the years.

The channels above the mouth are said to change frequently in the spring and early summer.