did ，have done and had done？？？ the distinguish between did ，have done and  had done？for example，im reading the book now.tomorrow how shoud i say？read，have read or had read？and whats the distinguish？

First notebook entry: Introducing myself I am twenty-three years old, zhejiang,from China . I am a senior student. I am optimistic, cheerful. I want to find a foreigner who can speak English also want to learn Chinese , we can learn from each other. i like English