1.   And, thanks to those rising passenger numbers, large air crashes could soon become weekly occurrences.

2.   As a spectator sport, boxing has been transformed from weekly occurrence to periodic mega-matches.

3.   From most streets in Ipanema and many in Copacabana, explosions and prolonged gunfire in the middle of the night are becoming a weekly occurrence.

4.   Now, it has become almost a weekly occurrence.

5.   Questionable-to-bad calls are a weekly occurrence this season.

6.   These appear to be options Mariucci will only seriously consider if what happened on Sunday becomes a weekly occurrence.

7.   To this day the leftover bombs are a constant reminder and accidental explosions are a weekly occurrence.

8.   Bobblehead promotions are almost weekly occurrences at baseball, football, ice hockey and basketball stadiums in North America.

9.   Bombings have become an almost weekly occurrence in Estonia, Latvia and Lithuania, the three former Soviet republics in the Baltics.

10.   The standoff had shocked even Brazilians, despite the fact that prisoner rebellions are a weekly occurrence.