Will and Be going to

Will:

We use "will" in the following cases:

1. To express a prediction based on what we believe will happen.

 Ex: "It will snow"

2. To make spontaneous decisions.

Ex: "I will call her" 

3. To talk about a future event.

        Ex: "I will marry on july 24"

4. To make promises.

        Ex:  "I will buy you a bottle of water, I promise"            

5. For refusing to do something.

Ex: " I will not wash the dishes"  

Structure:

Be going to:

We use "be going" to in the following cases:

1. To express a prediction based on evidences.

Ex: "Look at that black cloud, It is going to rain.

      "It's too late, you are going to miss the bus"

2. when we want to talk about a plan, projects or intentions for the future.

Ex: "I'm going to paint my house tomorrow"

      "we are not going to see my grandparents next week"

Structure: