Boy, I just love it when people ask questions like yours!! Especially looking for the "ifs" and "tos" and "ons"!! "if" appears in the Bible 1521 times. 1029 times in the Old Testament and 492 times in the New Testament. (KJ). Source: Strong's Exhaustive Concordance.
The word if appears 1282 times in the KJV Bible
The word 'IF' occurs 1784 times in the NIV. The word 'if' is important when you are studying the Bible. It calls for your attention because this word is most often an indication that something significant is coming up. So when you come across this word, concentrate more and focus on what follows the text you are reading.