I'm sorry, I am not clear on your question. Are you saying both tubes were tied, but only one was burnt? Or that only one tube has been tied, then burnt at all?
In any event, if you have one tube that is clear (not tied or burnt), then yes, you certainly can get pregnant, although it may be a bit tougher. If both tubes have been tied, or burnt, it is possible, but very unlikely. Your best course of action in that case would be IVF. Good luck!