A.T. Robertson Commentary Luke 17:27

"They ate, they drank, they married, they were given in marriage, until the day that Noah entered into the ark, and the flood came, and destroyed them all." — Luke 17:27 (ASV)

They ate, they drank, they married, they were given in marriage (ησθιον, επινον, εγαμουν, εγαμιζοντο). Imperfects all of them vividly picturing the life of the time of Noah. But the other tenses are aorists (Noah entered εισηλθεν, the flood came ηλθεν, destroyed απωλεσεν).