Example sentences

1. 彼は不注意な過ちをおかす、しかも頻繁にだ。

   He makes careless mistakes, and does so frequently.

2. 日本は頻繁に地震に襲われる。

   Earthquakes frequently hit Japan.

3. 近頃は地震が頻繁で不気味だ。

   The recent frequency of earthquakes makes us nervous.