1. Simple Future
1.1. describe actions that will be developed in the future.
1.2. In English this verb tense is usually expressed with the modals Will
1.2.1. Use Simple Future to express decisions made by the speaker at the moment of speech.
1.2.1.1. For example: I will phone her tonight
2. Going to
2.1. It is a special structure that we use to talk about the future.
2.1.1. We use going to make prediction. Our prediction is based on present evidence.
2.1.1.1. We use going to when we have the intention to do something before we speak.
2.1.1.1.1. For example: My boss isn't going to be very happy!
3. Future Continuous
3.1. Indicates that something will occur in the future and continue for an expected length of time.
3.1.1. future continuous tense is only used with action verbs, because it is possible to do them for a duration.
3.1.1.1. For example: I will arrive at five o’clock. Michael will be running a marathon this Saturday.
4. Future Perfect
4.1. is used to indicate a future event that has a definitive end date.
4.1.1. It follows a general formula of will + have + verb (ending in -ed).
4.1.1.1. Use of these verb tenses is pointing Toward the future, but there’s a stop to it that will have occured before this hypothetical future.
4.1.1.1.1. For example: Shannon will have gardened by then.