Breakdown of Моё решение оказалось правильным.
Questions & Answers about Моё решение оказалось правильным.
The possessive adjective мой / моя / моё / мои agrees in gender, number, and case with the noun it modifies.
- решение is a neuter noun (it ends in -ие).
- Therefore, in the nominative singular, you must use the neuter form: моё.
So:
- мой – masculine (e.g. мой дом – my house)
- моя – feminine (e.g. моя книга – my book)
- моё – neuter (e.g. моё решение – my decision)
- мои – plural (e.g. мои решения – my decisions)
Решение is in the nominative singular case. In this sentence, it is the subject:
- Моё решение – my decision (subject)
- оказалось – turned out (verb)
- правильным – correct (predicative complement in instrumental)
The subject of the sentence is what is doing or experiencing the action. Here, the decision is what turned out (to be) correct, so it stands in the nominative.