Okay, so you know how we can use sounds and letters to make different words, right? Well, sometimes we can also change the form of words to make new words. This is what we call a morphological pattern.
A morphological pattern is like a set of rules that tell us how to change the form of a word to make a new one. For instance, if we take the word "happy" and we want to make it mean the opposite, we can add the prefix "un-" at the beginning, and it becomes "unhappy."
There are different kinds of morphological patterns that we use to change words. One is called suffixation, where we add something at the end of the word to make it mean something else. For example, if we add "-ful" to "hand," we get "handful," which means something that can be held by one hand.
Another kind of morphological pattern is called infixation, where we add something in the middle of the word to make it mean something else. This is not very common in English, but in some languages, it's more common.
So, basically, a morphological pattern is a way of changing words by adding, removing, or modifying sounds or letters. It's like playing word-games, but with rules that we can follow to create new words.