Questions & Answers about Моя соседка тоже берёт свой велосипед и едет в парк.
In Russian, possessive pronouns agree in gender, number, and case with the noun they modify.
- соседка is a feminine noun (it ends in -а and means female neighbor).
- Therefore you must use the feminine form моя (my) rather than the masculine мой.
So:
- моя соседка = my (female) neighbor
- мой сосед = my (male) neighbor
- сосед = neighbor (male)
- соседка = neighbor (female)
The suffix -ка is a common way to form a feminine noun from a masculine one.
Context decides what kind of neighbor you mean:
- someone who lives next door or in the same building
- a neighbor on a train, at a desk, in a dorm room, etc.
So моя соседка is specifically my female neighbor.