| 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. |
| /ʊ/ | The back of the tongue lifts towards the back of the roof of the mouth. | The lips flare. | | | | The vocal cords vibrate. |
| /k/ | The back part of the tongue reaches up and touches the soft palate, cutting off the air. The tongue pulls away and the air flows. | The lips position to adjust the sound that comes next. | | | Air passes through the mouth. First, the air stops. Then, it flows. | The vocal cords do not vibrate. |
| /s/ | The tongue is behind the teeth. | | | The teeth remain clenched. | The air flows through the tip of the tongue towards the edge of the teeth. | The vocal cords do not vibrate. |
