To type directly with the computer keyboard:
The right characters are ɛ and ɣ
But the Greek characters, are often used on Internet.
In Kabyle, the character ţ (t with cedilla) corresponds to tˢ (often replaced by t).
The character ʷ (or ᵒ) notes the labial-velarization.
see Encyclopédie berbère: the labial-velar consonants.
In Rifian, the macron below indicates that the consonant is occlusive.
→ Berber language
→ Berber keyboard: Tifinagh alphabet
→ Multilingual keyboard: index