Question: what are all the abilities of the sharingan?
Answer: The Sharingan grants the wielder two broad abilities: the "Eye of Insight" (洞察眼, Dōsatsugan) and the "Eye of Hypnotism" (催眠眼, Saimingan). Although the abilities are not literally restricted to certain eyes, Madara Uchiha noted that the Sharingan can only be used to its full potential when both eyes are together.