Sound | Tongue | Lips | Jaw | Teeth | Air | Vocal Chords |
---|---|---|---|---|---|---|
/ˈ/ | ||||||
/f/ | The bottom lips are in contact with the teeth. | The top teeth press the bottom lips. | The air flows through the teeth. | The vocal cords do not vibrate. | ||
/o/ | The back of the tongue raises above the middle of the mouth. | The vocal cords vibrate. | ||||
/ʊ/ | The back of the tongue lifts towards the back of the roof of the mouth. | The lips flare. | The vocal cords vibrate. |