WHERE HAVE YOU BEEN OR WHERE HAVE YOU GONE?

When studying the present perfect we study the fact that the verb "go" has to past participles: gone and been. Oh my God: more rules to learn! True, but the good news is that the rules are easy to learn.
Click on this link to learn the differences and so some practice.
If you are young at heart like me but your ID proves you're a bit older, you'll remember this beautiful song: Where have all the flowers gone? Listen with the lyrics, sing along and practice the present perfect and enjoy the moving feelings that Joan Baez communicates!

NEVER AND EVER: NEVER SAY NEVER

The adverbs "never" and "ever" are extremely common and useful; however, we usually need practice to use them correctly. 
Therefore,  to check the details and do some more work on this issue, here's an interesting explanation with an exercise

Finally, you might want to remember the meaning of the famous idiom "Never say never" :)
According to the Merriam-Webster dictionary this idiom is used:
to say that a person should not say that he or she will never do something because people change their minds 

• "Would you ever go there again?" "Well, (I'll) never say never, but I'm certainly not planning to go there anytime soon!" (from the Merriam-Webster dictionary)