1. Plosives (stop sounds) It is so-

1. Plosives (stop sounds)
It is so-called because the air stream is completely stopped for a moment, after which it is allowed to rush out of the mouth with an explosive sound. English has six stops / p b d t k g /
2. Fricative
A fricative is the sound formed by a narrowing of the air passage at some point so that the air in escaping makes a kind of hissing e.g /f/, /s/ or buzzing e.g /z/ sound. English fricatives have nine sounds. There are 9 fricative sounds in English: / v f ʃ ʒ Ө ð s z h /
3. Affricative
An affricative is a combination of a plosive consonant with an immediately following fricative /ʒ/ or / ʃ/ sound. There are 2 affricative sounds in English: /ʤ/ & / ʧ/
4. Nasals
A nasal is the sound in the production of which all the air from the lungs escapes down the nose and not through the mouth at all. There are3 nasal sounds in English: / m, n, ŋ /
5. Lateral (approximant) sound
A lateral is the sound formed by the tip of the tongue firmly pressed against the teeth ridge or the teeth so that the air can escapes at one or both sides of the tongue. There is one lateral sound in English:/ l /
6. Retroflex/approximant consonant
If the air stream is obstructed by the friction formed by the tip of the tongue against the back part of the teeth ridge and the main box of the tongue being kept low to make a curled shape, we have retroflex sound. This is also called an approximant.
There is one retroflex sound in English: / r /
7. Glides or semi-vowels/ approximants
A semi- vowel is a gliding sound in which the speech organs start at or near a “close” vowel and immediately move away to some other vowels. There are 2 glides in English: / w, j /