Phonological rules are the rules of combining speech sound structure of certain language, these rules can be created by conducting a phonological process in the aspects of the language being studied. English phonological processes happen both in word and phrase levels. In the word level, it occurs when a morpheme is combined with another
morpheme. One of the sound will experience a change because of the influence of the
other morpheme. The English phonological process also occurs in a phrase level. This
change is caused by the influence of syntactic factors.555555555555555
It often happens in language that the phonetic environment before or after a sound influences how this sound is pronounced. The phonetic environment prompts a change from a sound's pronunciation in isolation. Non-native speakers of English can be rather sensitive to such deviations from the expected pronunciation. The phonetic environment is responsible for the pronunciation change that consists of all members of the natural class of speech.5555555555555
There are many phonological rules in a language, but heren we will only discuss a few from English. Phonological rules can be classified into following major kinds. They are assimilation, Dissimilation, nasalization, insertion, deletion and Allophonic. language learners may notice (and trip over) the changes triggered by phonological rules. Another reason is that these pronunciation changes often account for pronunciation varation. these characteristics are perceived as native-like. Understanding phonological rules provides the tools for teaching more native-like pronunciation, an goal important to many non-natives.