 However, since the pharyngeal and glottal consonants of Tigrinya (and other Ethiopian Semitic languages) cannot be followed by this vowel, the symbols in the first column in the rows for those consonants are pronounced with the vowel "a," exactly as in the fourth row.These redundant symbols are falling into disuse in Tigrinya and are shown with a dark gray background in the table.When it is necessary to represent a consonant with no following vowel, the "consonant"+"ə" form is used (the symbol in the sixth column).