OET interlinear 1 KI 2:11

uW Translation Notes:

Note 1 topic: figures-of-speech / infostructure

וְ⁠הַ⁠יָּמִ֗ים אֲשֶׁ֨ר מָלַ֤ךְ דָּוִד֙ עַל־יִשְׂרָאֵ֔ל אַרְבָּעִ֖ים שָׁנָ֑ה בְּ⁠חֶבְר֤וֹן מָלַךְ֙ שֶׁ֣בַע שָׁנִ֔ים וּ⁠בִ⁠ירוּשָׁלִַ֣ם מָלַ֔ךְ שְׁלֹשִׁ֥ים וְ⁠שָׁלֹ֖שׁ שָׁנִֽים

and,the,days which/who reigned Dāvid on/upon/above/on_account_of//he/it_went_in Yisrael forty year in,Hebron reigned seven years and,in,Jerusalem reigned thirty and,three years

If it would be more natural in your language, you could give the smaller numbers first and then state the total. Alternate translation: “David reigned in Hebron seven years, and he reigned in Jerusalem 33 years. So, all the days that David reigned over Israel were 40 years”

Note 2 topic: figures-of-speech / idiom

וְ⁠הַ⁠יָּמִ֗ים אֲשֶׁ֨ר מָלַ֤ךְ דָּוִד֙ עַל־יִשְׂרָאֵ֔ל אַרְבָּעִ֖ים שָׁנָ֑ה

and,the,days which/who reigned Dāvid on/upon/above/on_account_of//he/it_went_in Yisrael forty year

Here, the word days refers to any period of time, not just to a period of a few days. If it would be helpful in your language, you could use a comparable phrase or state the meaning plainly. Alternate translation: “And the length of time that David reigned over Israel was 40 years” or “And David reigned over Israel for 40 years”