1. He will go to Chicago.

2. He is going to go to Chicago.
3. He shall go to Chicago.
4. I will make him go to Chicago.
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Does #1 mean #2? Does #3 mean #4?

Hello, rfvv. When #1 says "He WILL go to Chicago," it is a future tense. He is going to be going to Chicago. #2 says "He is going to go to Chicago." When #2 said, "is going to be going," they mean he will be going to Chicago. Therefore, questions #1 & #2 mean the same thing.

#3 says "He SHALL go to Chicago." The definition of "shall" is "(in the first person) expressing the future tense." #3 means the same thing as #1 & #2.

#4 says "I will make him go to Chicago." This sentence basically means that someone will be taking him with them. This doesn't quite align with #3.

So, yes. #1 & #2 mean the same thing.

#3 & #4, not so much.

I hope this helps! ^-^

Yes, 1 and 2 are saying the same thing.

3 is almost the same thing, but with stronger intent.
http://blog.oxforddictionaries.com/2013/09/will-versus-shall/

4 is a whole different thing! It means you will force him to go ...

To determine the meaning of these sentences, we need to analyze the different ways of expressing future actions.

1. "He will go to Chicago."
In this sentence, "will" is used as a modal verb to indicate a future action. It suggests that the subject has made a decision or has a plan to go to Chicago. This sentence does not imply any external influence or compulsion. It simply states that the subject intends to go to Chicago in the future.

2. "He is going to go to Chicago."
This sentence also implies a future action, but it uses the present continuous tense ("is going to") to express the intention or plan of the subject to go to Chicago. It suggests that there is a predetermined plan or arrangement for the subject to go to Chicago in the future.

So, #1 and #2 have a similar meaning: both indicate that the subject intends or plans to go to Chicago in the future.

3. "He shall go to Chicago."
"Shall" is another modal verb used to express the future. However, its usage is less common in modern English, especially in American English. In this sentence, "shall" indicates a strong assertion or obligation and can imply a sense of determination or necessity. So, this sentence suggests that the subject has a firm intention or obligation to go to Chicago in the future.

4. "I will make him go to Chicago."
In this sentence, the speaker is emphasizing their agency or influence over the subject's future action. It implies that the speaker has the power or ability to ensure that the subject goes to Chicago, even if the subject may not have initially intended to do so.

Thus, the meaning of #3 and #4 differs:
- #3 implies that the subject has a strong determination or obligation to go to Chicago.
- #4 implies that the speaker has the ability or intention to force or influence the subject to go to Chicago.