くある
yokuaru

Godan Verb (ru)
Expression

1. to often be the case; to occur frequently; to be common; to be popular

Usually Written in Kana
彼女 かのじょがピアノを くのが こえることがよくあります。
kanojoga pianō hiku noga kikoeru kotoga yoku arimasu.
I often hear her play the piano.