What if you don't match your sign, can you be another?!

What if you don't match your sign, can you be another?

Say you are a Gemini and you are born on the 22nd of May. but you don't match your sign, could you be a Taurus? (the sign before Gemini is Taurus) my friend is going through this problem and i was wondering if that is possible, if you were born under a sign that doesn't match you but the sign before or after does....

2 months ago
This is my friends birthday. i myself am an Aquarius. and i fit the description perfectly!

Your friend is what is known as a cusp. She will have some traits of both gemini and taurus.