Will and Be going to

1. Will is used to:

1.1. Voluntary actions

1.1.1. They will clean their rooms.

1.2. Express a promise:

1.2.1. He promises he will call when he arrives

1.2.1.1. Decisions

1.2.1.1.1. I am hungry; I will make lunch.

2. Will

2.1. Affirmative Sentences Sujeto + verbo auxiliar ("to be") + "going to" + verbo principal.

2.2. She will arrive late

2.3. Negative Sentences Sujeto + "will" + "not" + verbo principal.

2.3.1. She will not arrive late

2.4. Interrogative Sentences "Will" + sujeto + verbo principal.

2.5. Will she arrive late?

3. Structure Going to

3.1. Affirmative Sentences

3.2. She's going to arrive late

3.3. Interrogative Sentences Verbo auxiliar ("to be") + sujeto + "going to" + verbo principal.

3.3.1. Is she going to arrive late?

4. Be going to is used to:

4.1. Plans

4.1.1. We're going to have a party tonight.

5. Will and be going to can be used for predictions

5.1. It will be a great party. / It's going to be a great party.

6. Negative Sentences Sujeto + verbo auxiliar ("to be") + "not" + "going to" + verbo principal.

7. She's not going to arrive late

8. The difference between "going to" and "will"

8.1. WILL: It is the sense of planning and probability of an action happening.

8.1.1. GOING TO: ”for concrete plans, when we are sure that something is going to happen.

9. Usarel short way modal verb "will"

9.1. Structure

9.2. Affirmative Sentences Sujeto + “will” + verbo principal. I (I’ll) call you tonight

9.2.1. Negative Sentences Sujeto + “will” + “not” + verbo principal. I [won’t] call you tonight.

9.2.1.1. Interrogative Sentences “Will” + sujeto + verbo principal? Will you call me tonight?