1 Nephi 12:4
And it came to pass that I saw a mist of darkness
on the face of the land of promise;
and I saw lightnings, and I heard thunderings, and earthquakes,
and all manner of tumultuous noises;
and I saw the earth and the rocks, that they rent;
and I saw mountains tumbling into pieces;
and I saw the plains of the earth, that they were broken up;
and I saw many cities that they were sunk;
and I saw many that they were burned with fire;
and I saw many that did tumble to the earth, because of the quaking thereof.
and I saw many cities that they were sunk;
they - 66 occurrences in 40 verses - 1 Nephi 10:3, 6, 11, 12, 14, 18, 11:28, 29, 30, 31, 34, 35, 12:4, 7, 9, 10, 15, 17, 20, 23, 13:9, 10, 13, 14, 15, 20, 23, 24, 26, 27, 32, 35, 37, 40, 41, 14:2, 6, 14, 23, 26
they were - 13 occurrences in 10 verses - 1 Nephi 11:29, 31, 34, 35, 12:4, 7, 15, 13:14, 15, 14:14