Paul can hardly be accused of mincing his words. He is an apostle, knows the truth, and says it clearly and unapologetically. Sometimes he uses sentences that are so long we struggle a bit to follow his discussion, but the Greek often has clues that help.
In describing the false teachers, Paul says that “some” people (τινες) will depart from the faith, and then follows with a series of participles that tie the argument together. When the NIV and NET start a new sentence at 3, and the NLT starts a new paragraph, they break the flow of thought and these participles become key in understanding Paul.