I know if

1. 2 Ne. 4: 5
     5 But behold, my sons and my daughters, I cannot go down to my grave save I should leave a blessing upon you; for behold, I know that if ye are brought up in the way ye should go ye will not depart from it.
2. 2 Ne. 31: 13
     13 Wherefore, my beloved brethren, I know that if ye shall follow the Son, with full purpose of heart, acting no hypocrisy and no deception before God, but with real intent, repenting of your sins, witnessing unto the Father that ye are willing to take upon you the name of Christ, by baptism—yea, by following your Lord and your Savior down into the water, according to his word, behold, then shall ye receive the Holy Ghost; yea, then cometh the baptism of fire and of the Holy Ghost; and then can ye speak with the tongue of angels, and shout praises unto the Holy One of Israel.
3. Jacob 7: 12
     12 And this is not all—it has been made manifest unto me, for I have heard and seen; and it also has been made manifest unto me by the power of the Holy Ghost; wherefore, I know if there should be no atonement made all mankind must be lost.
4. Mosiah 9: 5
     5 And it came to pass that I went again with four of my men into the city, in unto the king, that I might know of the disposition of the king, and that I might know if I might go in with my people and possess the land in peace.
5. Mosiah 12: 33
     33 But now Abinadi said unto them: I know if ye keep the commandments of God ye shall be saved; yea, if ye keep the commandments which the Lord delivered unto Moses in the mount of Sinai, saying:
6. Alma 20: 19
     19 Now when Ammon had said these words unto him, he answered him, saying: I know that if I should slay my son, that I should shed innocent blood; for it is thou that hast sought to destroy him.