stosować

To put into use, action, or effect; to claim or exercise (a right, discount, or demand).

Қалай қолдану керек

The verb 'stosować' (to apply / use / practice) is imperfective; its perfective pair is 'zastosować'. It requires a direct object in the accusative case (e.g., 'stosować lek' — to apply a medicine). The reflexive form 'stosować się' means to comply or adhere to rules (requires 'się do' + genitive case, e.g., 'stosować się do przepisów' — to comply with rules). It conjugates ending in '-uję' (e.g., 'stosuję', 'stosujesz').