The following table shows the 24 consonant phonemes found in most dialects of English, plus , whose distribution is more limited. Fortis consonants are always voiceless, aspirated in syllable onset (except in clusters beginning with ), and sometimes also glottalized to an extent in syllable coda (most likely to occur with , see T-glottalization), while lenis consonants are always unaspirated and un-glottalized, and generally partially or fully voiced. The alveolars are usually apical, i.e. pronounced with the tip of the tongue touching or approaching the roof of the mouth, though some speakers produce them laminally, i.e. with the blade of the tongue.