After learning that the owner of their new house is coming back, Tanisu and his family return to their old home in search of medicine that will make the others appear human.
we were worried about when the 
medicine might lose effect.
كنّا قلقين بشأن وقت انتهاء مفعول الدواء
mussten wir befürchten, dass der Effekt
der Pillen jederzeit nachlassen könnte.
nos preocupó
que la medicina perdiera el efecto.
nos preocupaba
que la medicina perdiera el efecto.
ne sachant pas quand les pilules
cesseraient de faire effet.
eravamo tutti molto preoccupati 
che l'effetto della medicina svanisse.
ficamos preocupados que o efeito
dos remédios pudesse passar.
нас не оставлял страх того, 
что таблетки перестанут действовать.