The phrase "were to" is often used in conditional sentences and expresses a hypothetical or uncertain situation. Synonyms for "were to" can be "should," "suppose," "if," "in the event that," "in case," or "provided that." These words provide alternate options for expressing a similar sentiment of contingency or possibility. For example, "If I were to win the lottery, I would buy a big house" could be rewritten as "Should I win the lottery, I would buy a big house." Using different synonyms for "were to" can help add variety to your writing and provide different layers of meaning to the text.