1 Nephi 17:51
And now, if the Lord has such great power,
and has wrought so many miracles among the children of men,
how is it that he cannot instruct me, that I should build a ship?
And now, if the Lord has such great power,
and - 403 occurrences in 132 verses - 1 Nephi 16:1, 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, 39, 17:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 18:1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 19:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 21
and now - 12 occurrences in 11 verses - 1 Nephi 16:1, 3, 32, 17:19, 33, 43, 48, 51, 55, 18:7, 19:6
and now if - 2 occurrences in 2 verses - 1 Nephi 17:51, 19:6