USE 1 "Will" to Express a Voluntary Action
USE 2 "Will" to Express a Promise
USE 3 "Be going to" to Express a Plan
USE 4 "Will" or "Be Going to" to Express a Prediction
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1
[ when the speaker offers to help someone else ]
[ when we request that someone help us or volunteer to do sth. for us ]
[ when we refuse to voluntarily do something - "will not" or "won't" ]
2
[ when promissing sth. ]
3
[ when a person intends to do something in the future ]
[ it does not matter if the plan is realistic or not: I’m gonna be an actor when I grow up. ]
4
[ predictions are guesses about what might happen in the future ]
[ the subject has little control over the future , totally different of USES 1-3]
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exercises:
http://www.englishpage.com/verbpage/verbs18.htm