And messing around with "grammar" is pretty much lesson #1 in advanced conversational hypnotherapy. Its a huge subject.
But the first thing you learn is to shift tenses (past-present), and nouns, verbs, and to scramble it up. Some of it is to confuse the conscious mind, and trigger a transderivational search. They also use
Transformational Grammar, Artfully Vague language patterns,
Forum:
"Cults," Sects, and "New Religious Movements"