Consonant can be classified according to the place and manner of articulation. Manner of articulation divided into seven part, there are:
• Bilabial (made with the two lips)
An articulation with the lips is a labial articulation, there are: the upper and lower lips. bilabial sounds are p, b, m and w.
• Labiodentals (made by lower lip and upper front teeth).
Most people when saying words such as, “fie, vie” raise the lower lip until it nearly touches the upper front teeth.
• Dental (tongue...
