As we all know, all the sounds in English are classified and organized into different classes based on the sound`s place and manner. The study of speech sounds and how sounds are organized and used in a language is called phonology. 

Phonology is one of the language systems that children need to acquire and learn in order to speak and communicate using the language correctly in different life domains. All Children pass through the same phonological stages while acquiring the speech sounds that are presented in the language. However, some of them undergo and experience some phonological delays that might hinder their way of acquiring the sounds correctly. But phonological delays are a very natural thing in the world and it`s distinctly connected to humans` being nature. 

In fact, these delays show that the child is learning and developing. It shows his progress and development while acquiring the language. As children learn and acquire the sounds in a language they make systematic errors and experience phonological delays. For example, speakers of English language might say “ben” instead of “pen”,   “boken” rather than “broken” and “zis”  rather than “this”

They tend to overgeneralize these phonological patterns and processes but later they recover from such generalization through exposure, practice and increased hours of instruction. however, these phonological delays are considered a natural result of the fact that no one can learn or acquire a language without making any speech errors.