write + (and…) + nothing but
kaite bakariiru
nothing but; only ever
meaning: do nothing but write
弟は休みの日、ゲームばっかりしてる。
otouto wa yasumi no hi, geemu bakkari shiteru.
On his days off my little brother does nothing but game. casual
彼は会議で文句を言ってばかりいる。
kare wa kaigi de monku o itte bakariiru.
In meetings, he does nothing but complain. neutral