Yanlış : She is busy with looking after the baby.
Doğru : She is busy looking after the baby.
Bebeğe bakmakla meşgul.
Busy sıfatı şu kalıplarda kullanılır: busy doing sth, busy with sth.
He is busy.
He is busy with his homework.
He is busy doing his homework.
Ev ödeviyle meşgul.
Ev ödevini yapmakla meşgul.