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As I'm writing this entry, I'm thinking, "If I [was known | knew | had known | know] the future, would I do anything differently?". For example, I didn't really like my last trip to the countryside. But if I'd known that before going there, would I [go | had gone | go | have gone] there anyway? If I hadn't been there that would mean I [wouldn't | won't | will | can't] have seen those beautiful landscapes in the country. That would be disappointing.

I don't think that being able to see the future would make our lives easier. However, it could prevent some accidents. I wouldn't mind if someone told me about a slippery floor, for instance. Because yesterday no one [warn | was warning | had warned | had been warning] me about that before I fell down and sprained my ankle. It [has hurt | is hurting | had hurt | was hurting] so bad right now!