The phrase "sucking pattern" refers to a repetitive and habitual way of sucking on something, often associated with infants who suck on their thumbs or pacifiers. Full definition
It has different sucking patterns, from slow to quick and from deep to short responses. (giantmommy.com)
It is best to allow time to establish a good sucking pattern before introducing a pacifier. (childbirthsolutions.com)
Generally speaking, if a baby has been given a bottle or pacifier too early, he may end up with incorrect sucking patterns at the breast. (verywellfamily.com)