A.T. Robertson Commentary Acts 10:18

"and called and asked whether Simon, who was surnamed Peter, were lodging there." — Acts 10:18 (ASV)

Called (φωνησαντες). In a loud voice that those inside the house might hear.

Asked (επυνθανοντο). Imperfect middle of πυνθανομα, old verb to make inquiry especially with an indirect question as here. Kept on inquiring. Westcott and Hort follow B C here and read επυθοντο (second aorist middle, effective aorist). Either makes sense, though the imperfect is more picturesque.

Were lodging (ξενιζετα). Present middle indicative retained in indirect question. See on verse 6 for the verb.