不 時 bù shí : frequently; often; at any time

層 見 迭 出 céng jiàn dié chū : to occur frequently; to occur repeatedly

常 cháng : always; ever; often; frequently; common; general; constant

Big5: , Unicode: 5e38 (常),
Links: MT, Cantonese, Ld, Chinese Language

常 常 cháng cháng : frequently; usually; often

常 問 問 題 cháng wèn wèn tí : frequently asked questions; FAQ

經 常 jīng cháng : everyday; day-to-day; frequently; regularly

頻 [频] pín : frequency; frequently; repetitious

Big5: , Unicode: 983b (頻),
Links: MT, Cantonese, Ld, Chinese Language

頻 繁 pín fán : frequently; often

亟 qì : repeatedly; frequently

Big5: , Unicode: 4e9f (亟),
Links: MT, Cantonese, Ld, Chinese Language

時 常 shí cháng : often; frequently

數 [数] shuò : frequently; repeatedly

Big5: , Unicode: 6578 (數),
Links: MT, Cantonese, Ld, Chinese Language

往 往 wǎng wǎng : often; frequently