and if not vs i will come

Some examples from the web:

• ...and if not... living Catholicism and fighting for life in an anti-Catholic, pro-death ..... ...and if not... and 'twas the beginning... pressing on in the name of Christ ...
• Feb 20, 2012 ... I can conjure up many examples where both 'if' and 'if not' violate my above descriptions and many more which just seem malformed and ...
• In nothing speak, it's more like If Not O1 is Nothing AND If Not P1 is Nothing, then [foo]. Of course, I can't have the two If's. Thanks in advance.
• And If Not...He Is Still Good. Allison Steele in 500 Words On on Feb 4, 2015. So often we have this idea of how our life is supposed to work out. Like there's a ...

Some examples from the web:

• So that i will come to your country for the sharing of the fund, The money will be shared 50% for me and 40% for you while the other 10% will be for the orphanage home with the poor people.
• I will come to surprise you as I did now.
• I will come get you about 3.
• Maybe I will come, 'cause I love it.
• I will come as soon as he has the treatment.
• I will come to you first next time.
• I will come to the cemetery at the weekend.
• I will come to collect it at 10 PM.
• If you call, I will come for sure.
• I will come to you after fixing the demon.
• I will come to Camelot at nightfall.
• I will come every few weekends, birthdays, summers.
• I think I will come to take you tomorrow.
• Do not move. I will come for you.
• I will come along, but I'm not solving any riddles.
• I will come with you if you leave this town alone.
• I will come with you to Nassau, survey the situation.
• I will come see you when I'm ready.
• I will come for you both when I have won.
• I will come here every week and give you $50.