This year too there are many regular concerts for amateur musicians being held.

They love to give parties all the time.

He makes careless mistakes, and does so frequently.

Earthquakes frequently hit Japan.

The recent frequency of earthquakes makes us nervous.

Trains come more often than buses.

Mary promised her mother that she would help her more often.

Also, increased temperatures may require that lubricants be changed frequently.

The work of Feuerbach is frequently referred to.

There are good grounds for the view that Paris was the scene of frequent riots even before the revolution of 1789.