sus deberes

his/her/their homework; duties

→ su
phrase Rare #32,570
his/her/their homework; duties “Sus” can mean his, her, your (formal), or their, depending on context. “Deberes” often means schoolwork, especially in Spain.
SP: María está haciendo sus deberes en la cocina.
EN: María is doing her homework in the kitchen.

Solía hacer con mi hija sus deberes de matemáticas.

I used to do my daughter's math homework with her.

Tom hizo sus deberes por sí mismo.

Tom did his homework by himself.

Él ha abandonado sus deberes.

He has abandoned his duties.

¿Terminó sus deberes?

Did he finish his homework?

— Das weiße Band - Eine deutsche Kindergeschichte (2009)

Él ya ha terminado sus deberes.

He has already finished his homework.

Todos aquí conocen sus deberes.

Everyone here knows their duties.

Tom no cree que Mary haya hecho sola todos sus deberes.

Tom doesn’t believe Mary did all her homework by herself.

Él estaba abrumado con la pesada carga de sus deberes.

He was overwhelmed with the heavy burden of his duties.

Tom probablemente está haciendo sus deberes todavía.

Tom is probably still doing his homework.

Él le explicará sus deberes.

He will explain his duties to him.

— Los chicos del coro (2004)

Soy la capitana, y el rango tiene sus deberes.

I'm the captain, and rank comes with responsibilities.