The final stop consonant are unreleased. Unreleased stops are produced when the air stream is closed to make the sound, but not re-opened, so that no air is released. Examples in English include the p in the casual pronunciation of yep and the t in "rat" when "rat trap" is said quickly. Beginners sometimes find it difficult to hear the difference between words like "rak" "rap" while in attempting to reproduce these sounds, they may inadvertently release the final consonant.