Will and Be Going To

Will and Be Going to are both used to talk about future activities.

1. Will 

• Will is used to talk about activities that haven't been planned or arranged to do. 
• Will is used to talk about prediction activity in the future.

      Forms:

     Subject + Will + base form of verb + adverb of time (tomorrow, next week, etc)

    It usually uses some expression, such as I think, I guess, I am not sure, Maybe, Probably

    Example:

    1. A: What are you going to do next week?

        B: I don't know, but  I think I will go to Bali next week.

    2. A: Where are you going tomorrow?

        B: I don't know. Maybe I will go Tokyo

    3. A: Who are you going with?

        B: I will probably go alone because my wife is busy.

    4. A: Are you going to attend the meeting tonight?

        B: I don't because I guess I will take my wife to the hospital.

    5. A: When are you going to visit your grandparents?

        B: I am not sure, but I think I will visit them next month

2. Be going to

• Be going to is used to talk about the activity that you have planned/arranged to do.

      Forms

      Subjects + be + going to + base form of verbs + objects + adverb of time (tomorrow, next week,
      next month, etc)

      Example:

      1. Jill    : What are you going to do next weekends?

          Bob : I'm going to visit my relative's house in Jakarta

         (Bob had already planned to visit his relative's house before Jill asked him questions. He is 100% certain about visiting his relative's house next weekends)

      2. A: How long are you going to stay in their house?

          B: I have told them that I'm going to stay for one week.

      3. A: Are you going there alone?

          B: No. I'm going to visit them with my little sister.

      4. A: What are you going to do there?

          B: Well, I really miss their cookings, so I'm going to try their cookings first and then visit around the city

      5. A: What are you going to bring?

          B: I am not going to bring many things, just some t-shirts, two pairs of jeans, my cellphone and ipod.

Next: Exercise of Will and Be Going To