The difference between "мой" (my) and "свой" (one's own). This is a classic tricky point for English speakers because both often translate to "my," but their usage depends entirely on the sentence structure. The Core Rule: Focus on the Subject The choice depends entirely on who is doing the action and who owns the object . Think of it like this: Мой/Моя/Моё/Мои is used when the object belongs to the subject, but the action is directed at someone or something else . It's often used with verbs that involve another person. Свой/Своя/Своё/Свои is used when the object belongs to the subject and the action is directed back at the subject themselves or remains within their sphere. It implies "my own," "your own," "his own," etc. When to Use "Свой" (One's own) This is the key pronoun to learn. Use свой when the owner of the item is the same person who is doing the action (the subject of the sent...