King James Version (KJV)
Saul reigned one year; and when he had reigned two years over Israel, {reigned one...: Heb. the son of one year in his reigning}
Modern English
Saul was thirty years old when he became king, and he reigned over Israel forty-two years.
Hebrew
בֶּן־שָׁנָ֖ה שָׁא֣וּל בְּמָלְכ֑וֹ וּשְׁתֵּ֣י שָׁנִ֔ים מָלַ֖ךְ עַל־יִשְׂרָאֵֽל׃
ben-shanah shaʾvl bmalkvo vshtey shaniym malak ʿal-yishraʾel