Will and Going to


- Simple Future has two different forms in English: "will" and "be going to."
Both "will" and "be going to" refer to a specific time in the future.
"Will" often suggests that a speaker will do something voluntarily. A voluntary action is one the speaker offers to do for someone else.

Form will: [will + verb]

Examples:

You will help him later.
Will you help him later?
You will not help him later.


- "Be going to" expresses that something is a plan. It expresses the idea that a person intends to do something in the future. It does not matter whether the plan is realistic or not.


Form be going to: [am/is/are + going to + verb]

Examples:

You are going to meet Jane tonight.
Are you going to meet Jane tonight?
You are not going to meet Jane tonight.


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Credits:

http://www.englishpage.com/verbpage/simplefuture.html