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Why do most websites and books use WILL in the result clause and not mention BE GOING TO?

IF-Clause Result Clause
If he reads a lot, his English WILL improve.

Books and websites ignore BE GOING TO which make it look as if it is wrong or unusual to use it in the result clause.
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Magic79Books and websites ignore BE GOING TO which make it look as if it is wrong or unusual to use it in the result clause.
I would say that it's a little less usual to use be going to in that situation, yes. Maybe it's because be going to suggests planning, and when you're trying to connect a condition to a result as if it were a natural law, planning doesn't come into it. If you're going to do something, or something is going to happen, it's usually because you planned to, or planning or scheduling is involved, so it's more or less unconditional. It is going to happen, regardless of what else happens. Besides, one of the uses of will is to suggest that there may be some conditions (stated or unstated) that apply, so the use of will in conditionals seems more natural. Nevertheless, be going to is not wrong in that situation.

CJ
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Sentences like these sound perfectly natural to me:

If you book first-class passage on the QEII, you will be traveling with some of Europe's wealthiest people.

If he keeps up this progress in reading, he will be entering kindergarten by the time he's three years old.

If we leave a little early, we will be arriving before the rush of the crowd.
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Hi Magic79. No, it is not wrong ot unusual. The difference between them has been debated here many times, I guess. Try searching form.
Magic79IF-Clause Result Clause
If he reads a lot, his English WILL improve.
Here the narrator makes some kind of prediction or expresses his opinion on it. He might improve or not.
Magic79 Books and websites ignore BE GOING TO which make it look as if it is wrong or unusual to use it in the result clause.
I wouldn't agree with it, I rather often see "be going to" in books. May be "will" can show some kind of journalist's way of writing but I might be wrong. Let's wait for the natives. Emotion: smile
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