I have a crush on a girl since kindergarden and im in 6th now. Every once in a while I tell her I have a crush on her, but she tells me everytime she likes one of her neighbor. How do I know if shes telling the truth?

if she liked you back why wouldnt she tell you?

even if the "neighbour" isnt real its probably her way of telling you she doenst like you withoot hurting your ego. i say its time to move on

Sounds like she's trying to let you down easy without hurting your feelings. Just like that annoying line 'it's not you, it's me'.

The point is, she was trying to let you down without hurting your feelings. I know being rejected hurts but it can also make you a stronger person. Just gotta move on, that's all.

I agree with both above, it sounds to me as though she is letting you down gently.
But if you're still school kids, you'll still see each other for years to come so why rush it?
it could be she isn't ready for a boyfriend yet, or has just too much on her plate without worrying about her love life as well.
Stay friends if possible, and who knows? Maybe when you're both in college or something, she may realise you were the guy for her after all.
Don't let rejection get you down, there are plenty more fish in the sea and you've only had a tiny taste of what it has to offer.

she wants to be freinds, so dont worry if she isnt telling the truth, have fun and enjoy your childhood and hope to work for future dreams that require study and work. freinds have more fun, less stress, enjoy;-]