1. Stability of articulation; Length of articultion

1.Stability of articulation;
2.Length of articultion;
3.degree of muscular tension;
4.Lip participation;
5.Vertical movement of the tongue;
6.Horizontal movement of the tongue;
1. front: (i:),(e:), (ei:),(ae:), (e:)
2.front-retractted: i, i(e);
3. back : a,c
diphtonologs :

1. Reduction.
2. Sound Alternation