b |  |  | The lips are closed to cause obstruction;the vocal cords vibrate; and air in the oral cavity is compressed to pronounce with plosion. |
p |  |  | P is similar to b.Their position and manner of articulation are the same(the lips are closed to cause obstruction;the vocal cords do not vibrate;the obstruction is removed by plosion).They are different in that b is unaspirated,whereas p is aspirated. |
m |  |  | The lips are closed;the vocal cords vibrate;and air is let out through the nasal cavity. |
f |  |  | The upper teeth are placed on the inside edge of the lower lip to cause obstruction;the vocal cords do not vibrate;and air is exhaled from between the lower lip and teeth with friction. |
d |  |  | The tip of the tongue touches the upper teeth and gum to cause obstruction;the vocal cords do not vibrate;and air is compressed in the oral cavity to pronounce with plosion. |
t |  |  | The tip of the tongue touches the upper gum;the vocal cords do not vibrate;and air is let out with friction between the root of the tongue and the soft palate. |
n |  |  | The tip of the tongue touches the upper gum;the vocal cords vibrate;and air is let out through the nasal cavity. |
l |  |  | The tip of the tongue is raised to touch the upper gum; the vocal cords vibrate;and air is exhaled from both sides of the tongue blade. |
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