The abbreviation e.g. means 'for example'. (It is short for the Latin term exempli gratia.) It is pronounced ee gee.
-- Certain foods are basic, e.g. chocolates and ice cream. --
The letters i.e. mean 'that is' or 'in other words' (from the Latin id est). Pronounced eye ee.
-- Chocolates and ice cream are basic, i.e. essential to life. --
The abbreviation etc. means 'and so on'. It is the Latin term et cetera and is pronounced
ett sett er a. (Never say 'and' et cetera, the 'and ' is already in there.)
-- To function properly I need chocolates, ice cream, etc. --