4. Alveolar (/t/, /d/, /s/, /z/, /n/, /l/):
ملامسه اللسان اعلى الفك العلوي عند النطق
Alveolar: The alveolar ridge is the portion of the roof of the mouth just behind ALVEOLAR the upper teeth. Most speakers of American English make the phones [s], [z], [t], and [d] by placing the tip of the tongue against the alveolar ridge. The word cooronal is often used to refer to both dental and alveolar.
tongue tip is at or near alveolar ridge
a large number of English consonants are alveolar
/l/ before vowel is “light” /l/, after vowel is “dark” /l/.
/t/ table /d/ door /s/ see /z/ zoo
/n/ nose /i/ eye