This sentence doesn't sound very natural. "I would hope to do that" is OK; it's just a more tentative version of "I hope to do that". "I will start my business" is also fine.
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Fandorin Is it possible to say so: "I hope to do that and then start my business" ?This is fine.
FandorinHow use tentative accent in the first part and then connect it with a Future?I think you need to choose a form of words that makes it clear that the