The reasons have been many and varied over the years.

The reason for this, however, varies according to the region.

And while their reasons may vary, they seem to agree that, sometimes, author knows best.

The reasons for the use of an alternate name vary.

The methods and reasons for leaving the credit business vary.

Of course, advancing age or not, the reasons for leaving vary.

The reasons for calling in a household services company vary.

The reason why the Companions are not named in convention can vary.

For me the reasons to shoot in black and white vary enormously.

The reasons for this vary and are often dependent upon a particular set of circumstances or issues.