7 The verb שָׁכַב (shakhav) means “to lie down, to recline,” that is, “to go to bed.” Here what appears to be an imperfect is a preterite after the adverb טֶרֶם (terem). The nuance of potential (perfect) fits well.
8 Heb “and the men of the city, the men of Sodom, surrounded the house, from the young to the old, all the people from the end [of the city].” The repetition of the phrase “men of” stresses all kinds of men.

In other versions

ESVEnglish Standard Version

But before they lay down, the men of the city, the men of Sodom, both young and old, all the people to the last man, surrounded the house.

NIVNew International Version (2011)

Before they had gone to bed, all the men from every part of the city of Sodom—both young and old—surrounded the house.

CSBChristian Standard Bible

Before they went to bed, the men of the city of Sodom, both young and old, the whole population, surrounded the house.

NLTNew Living Translation

But before they retired for the night, all the men of Sodom, young and old, came from all over the city and surrounded the house.

LEBThe Lexham English Bible

Before they lay down, the men of the city, the men of Sodom, both young and old, all the people to the last man, surrounded the house.

KJV 1900King James Version

But before they lay down, the men of the city, even the men of Sodom, compassed the house round, both old and young, all the people from every quarter:

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