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Losive consonants or stops [ p, b, t, d, k, g ]

Occlusive sonorant (or nasal sonorant) [ m, n, ƞ ]

The sounds produced with the air - passage not blocked but narrowed are called constrictive consonants. Constrictive consonants may be:

1. 
   Fricative consonants (or noise consonants) [ f, v, h, z, s, ɵ, θ, ð, ʃ, ӡ ]
   
2. 
   Constrictive sonorant:. [ w, j, r, l ]
   

The sounds produced with the stream of air first stopped before the closure, then released with some friction are called occlusive - constrictive consonants or affricates. They are: [tʃ, ʤ ]

2. 
   According to the place of obstruction the consonants are divided into the following groups:
   

1. 
   Labial consonants:
   

1a. bilabial consonants [ p, b, m, w ]

1b. labio - dental consonants [ f,v ]

2. 
   Lingual consonants:
   
   1. 
      fore lingual consonants:
      
      1. 
         apical consonants [ t, d, n, l, s, z, ɵ, _ᶞ,]
         
      2. 
         cacuminal consonants [ r ]
         
   2. 
      medio - lingual consonants is [ j ].According to the place of obstruction this consonant is called palatal.
      
   3.