This document discusses different ways to express unreality and wishes in English, focusing on conditionals and travel scenarios. It contains:
1) An explanation of real conditionals using present/future tense, and unreal conditionals using past tense. Examples include "If I don't put sunscreen on, I get burned" and "If I had enough money, I would visit Paris."
2) Examples of using "wish" to express present/future/past wishes like "I wish I caught an earlier flight" and "I wish I hadn't eaten that airplane food."
3) Clarification of the difference between "hope" which expresses possibility, and "wish" which expresses regret about imp