Basically, the perfect tenses use an event in reference to a later time. "I have never liked my English pronunciation." = I still don't like it now. "I had never liked my English pronunciation." = I didn't like it in the past, but something changed that later. eg. "I decided to take a proper English course last year. I had never liked my English pronunciation, and I wanted to fix that." It's not possible to use "have" in place of "had" here. You 'd need to change the whole tense to present. PS. pronounce -> pronunciation. The "ou" becomes "u".

Present perfect =used when talking about something that started in the past and which affects the situation that exists now "I have never liked my english pronounciation." (and I still don't) Past perfect =used when talking about something that took place before another past situation or activity, or before a particular time in the past "I had never liked my english pronounciation." (until something happened that changed my mind)

You would say "have" in your example, because the situation continues into the present. Past perfect is "the past of the past". In your example, it would be appropriate if you no longer felt bad about your pronunciation.

I have never like my pronunciation...correct. The other one is just plain wrong. "I had liked" talks about the further past in reference to another point of time in the past. In fact, another word for "past perfect" is: "further in the past" or "more than the past". You're Russian. I think you can figure that out.

As you can see the present perfect and the past perfect they are alike. (They are similar). I'm from México and use these tenses in differents ways. I use the present perfect for: Actions completed at an unespecified time. I use the past perfect for: Actions that occurred before another past action. And I think that the meaning of your sentences is completely different. Both express your thoughts about it "i mean that i did't like it in past and I did't like it now" But look at my examples. I have never liked my english pronunciation = Means: Your pronunciation has never be good. I had never liked my english pronunciation = Means:"In your whole life you've never liked it" Including before to start or practice your english pronunciation. I think so, I'm not 100% secure because I'm not a native english speaker. Good luck with it.