Yea, and I also thought that they could not keep the commandments of the Lord

and - 321 occurrences in 130 verses - 1 Nephi 1:1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20,   2:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,   3:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,   4:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,   5:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21

and I - 25 occurrences in 21 verses - 1 Nephi 1:3,   2:17,   3:9, 13,   4:5, 6, 9, 10, 11, 15, 16, 18, 19, 20, 23, 24, 25, 33, 34,   5:5, 8

and I also - 7 occurrences in 7 verses - 1 Nephi 4:11, 15, 16, 24, 25, 34,   5:8