最常 + Verb Phrase
最常 (zuìcháng) means "most often" or "most frequently." It combines the superlative marker 最 (most) with 常 (often) to indicate the highest frequency of an action. Place it before a verb to describe what someone does most frequently.
你最常去哪家餐厅吃饭?
Nǐ zuì cháng qù nǎ jiā cāntīng chīfàn?
Which restaurant do you go to most often?
他最常用的交通工具是地铁。
Tā zuì cháng yòng de jiāotōng gōngjù shì dìtiě.
The mode of transportation he uses most often is the subway.
这首歌是她最常听的一首。
Zhè shǒu gē shì tā zuì cháng tīng de yì shǒu.
This song is the one she listens to most often.