Future - Will vs. Going to
English Grammar Rules
A very confusing concept is when to use WILL and when to use BE GOING TO when we refer the future.
Both refer to the future but there is a slight difference but in most cases they can be used interchangeably with no difference in meaning. Even if you misuse them, a native speaker is going to understand you without any problems.
When to use GOING TO
The structure BE GOING TO is normally used to indicate the future but with some type of connection to the present. We use it in the following situations:
1. When we have already decided or we intend to do something in the future:
- They're going to retire to the beach - in fact they have already bought a little beach house.
2. When there are definite signs that something is going to happen:
- I think it is going to rain - I just felt a drop.
3. When something is about to happen:
- Get back! The bomb is going to explode.
When to use WILL
In other cases, where there is no implicit or explicit connection to the present, use WILL:
1. For things that we decide to do now.
- I'll buy one for you too.
- I think I'll try one of those. (I just decided this right now)
2. When we think or believe something about the future.
- My team will not win the league this season.
- I think it will rain later so take an umbrella with you.
3. To make an offer, a promise or a threat.
- I'll give you a discount if you buy it right now.
- I promise I will behave next time.
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