OET interlinear 2 KI 18:10

uW Translation Notes:

Note 1 topic: writing-pronouns

וַֽ⁠יִּלְכְּדֻ֗⁠הָ

(Some words not found in UHB: and,they,captured_it from_[the],end_of three years in=year sixth of,Hezekiah she/it year_of nine of,Hoshea king Yisrael captured Shomrōn )

The pronoun they refers to the Assyrians. It may be helpful to clarify this for your readers. Alternate translation: [And the Assyrians captured it]

Note 2 topic: translate-ordinal

בִּ⁠שְׁנַת־שֵׁ֖שׁ לְ⁠חִזְקִיָּ֑ה הִ֣יא שְׁנַת־תֵּ֗שַׁע לְ⁠הוֹשֵׁ֨עַ֙

(Some words not found in UHB: and,they,captured_it from_[the],end_of three years in=year sixth of,Hezekiah she/it year_of nine of,Hoshea king Yisrael captured Shomrōn )

See how you translated the similar expression in 8:25. Alternate translation: [In the sixth year of Hezekiah, which was the ninth year of Hoshea]

Note 3 topic: figures-of-speech / activepassive

נִלְכְּדָ֖ה שֹׁמְרֽוֹן

(Some words not found in UHB: and,they,captured_it from_[the],end_of three years in=year sixth of,Hezekiah she/it year_of nine of,Hoshea king Yisrael captured Shomrōn )

The expression was captured is a passive verbal form. If your language would not use that form, you could express the idea in active form or in another way that would be natural in your language. Alternate translation: [the Assyrians captured Samaria]