своей сестры

one’s sister

→ свой

phrase Rare #35,437

one’s sister Своей refers to the subject of the sentence, so the English possessive depends on who the subject is (for example, his, her, or your). The phrase is in the genitive case.

RU: Том гораздо старше своей сестры.

EN: Tom is much older than his sister.

Она сделала это для своей сестры.

She did it for her sister.

Том гораздо старше своей сестры.

Tom is much older than his sister.

Том сделал бы всё для своей сестры Мэри.

Tom would do anything for his sister Mary.

Ты в последнее время получал известия от своей сестры?

Have you heard from your sister lately?

Увидев фото своей сестры, я была удивлена, как она постарела.

Seeing a photo of my sister, I was surprised by how much she had aged.

Увидев фото своей сестры, я был удивлён, как она постарела.

Seeing a photo of my sister, I was surprised by how much she had aged.