I saw a grammar rule in an English book that said: 'When we use the present perfect to talk about experiences and we want to say: 'at no time in (my) life' we use the word 'never'; 'at any time in (your) life' we use the word 'ever'.' What does this mean? Does it mean that it is incorrect to say'I have ever eaten snake.' ?
However, I saw a description in the second picture of the exercise book accompanying the textbook, which indicates that the present perfect tense can actually be used with 'ever' for any subject, right? I've gotten really confused.