I have a question about English. Are these example sentences correct and natural? And do you believe this information about grammar is true?
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Before you decide which place you visit, the US or Europe, and when you imagine the weather there, you can say:
"It will be very hot if we go to the US next month."
After that, once you decide NOT to visit the US, you can say this, imagining the weather:
"It would be very hot if we went to the US today."