thank you for the reply
I was cleaning my Macbook keyboard with a wet wipe, brushed over the keys (pressing them down whilst doing so). It seemed to be a water damage. The only problem is the command key. For some reason it thinks that when I'm just simply pushing down one key, it assumes the command button is being held down. I am still using the keyboard, but before I am able to write with it, I have to constant hold down the command button, by holding down the command key, it thinks the opposite.Then I reboot it seems to work fine, like a normal keyboard, but after a few seconds the same happens again.
Are the quality of the keyboards any good? What would happen other then the keyboard won't work, if it is not the exact model? I know that apple dont produce original parts, but I will be getting similar as the ones on eBay?