Sell" is a verb, an action, it requires conjugation: I sell, you sell, he sells.. I sold, you sold, and so on. "Sale" is a noun, it is not conjugated and usually would appear together with definite or undefinite article "the sale", "a sale".
Sell" is a verb, an action, it requires conjugation: I sell, you sell, he sells.. I sold, you sold, and so on. "Sale" is a noun, it is not conjugated and usually would appear together with definite or undefinite article "the sale", "a sale".
