Is - n always, sometimes, or never a positive number

Sometimes

n can equal any number, negative or positive. A positive number for n would result in - n being negative. For example, if n = 2, then - n would be - 2. If n was negative, the two negatives would result in a positive, and it would make the overall answer positive. n = - 2, then - n would be - - 2, and both negatives would result in a + 2.