Wish / If Only Error Correction

This wish and if only error correction exercise helps you catch the mistakes learners make when they move from gap-fill practice into full-sentence proofreading. The main challenge is that the verb form after wish often looks like the wrong time at first: a past form can describe an unreal present situation, while past perfect describes a regret about something that already happened.

Wrong: "I wish my office has more natural light." Correct: "I wish my office had more natural light."
Wrong: "If only Leo checked the address before the taxi arrived." Correct: "If only Leo had checked the address before the taxi arrived."

The route also trains two high-frequency judgement calls: use wish + would for frustration about another person or an outside situation that can change, but do not use it mechanically for your own present state; and use hope, not wish, for realistic future hopes. Some sentences are already correct, so the task is not just to change every verb. You need to decide whether the sentence is a present wish, a past regret, a complaint about change, or a normal future hope before you edit the chunk.