Questions & Answers about बहन ने मेरा फोन मेज़ के ऊपर रखा।
What does ने do in this sentence?
ने marks the subject in many completed transitive actions in Hindi.
So in बहन ने ... रखा, the action put/placed is completed, and रखना is being used transitively, so the doer बहन takes ने.
It does not translate directly into English. It is a grammar marker, not a word like by or did.
Why is the verb रखा, not रखी, even though बहन is feminine?
Because in this kind of ने sentence, the verb usually agrees with the direct object, not the subject.
Here the direct object is फोन, which is normally treated as masculine singular in Hindi. So the verb is रखा.
Compare:
- बहन ने मेरी किताब मेज़ पर रखी।
Here किताब is feminine, so the verb becomes रखी.
So the verb is matching फोन, not बहन.
Why is it मेरा फोन and not मेरी फोन or मेरे फोन?
Because मेरा / मेरी / मेरे agrees with the thing possessed, not with the owner.
Here the possessed thing is फोन, which is masculine singular, so you use मेरा: