私は息子に英語を話せるようになってほしいって英語でなんて言うの？

Very good question. Let's look at the first example: "I am able to speak English" As the example say, you are able to speak English. This means you have the ability to communicate in English. Example 2 is saying the exact same thing : "I can speak English" This is a more casual way of saying you have the ability to speak English. Remember, you can use the word "can"in a question: "Can you speak English?"and then the example sentence "I can speak English"would be the answer. In Example 3 we find a different type of sentence: "I want my child to be able to speak English." This sentence is speaking of the future. You are saying that you want your child to have the ability to speak in English using "be able to".

Can' and 'be able to' may have very similar functions, but there are some basic differences. In terms of comparing the popularity, 'can' seems to be far more common than 'be able to' in the UK. 'Be able to' seems more formal. Compare: "I can walk to work in twenty minutes," and "I am able to walk to work in twenty minutes." Of course, it is also three words as opposed to one word, which may partly explain the preference for 'can.' In grammatical terms, 'can' is a modal auxiliary verb that expresses general ability to do things in the present. 'Could' can be used to express general ability in the past. 'Be able to' is not a modal auxiliary verb, but rather a combination of the verb 'be' + the adverb 'able' + the infinitive 'to'. So if you are talking about the past, you would have to use: "..was able to.."

▪ to be able. to have a particular skill ▪ can You are able. Sentences a. I really want my child to be able to speak English. This indicates that you want your child to have the ability to speak English. b. I can speak very good English. This means that you are able to speak English.

The term 'Can' is if you are able to do something so if your son speaks English then you would say 'My son can speak English' if you want to do something/try to do something then you would use 'be able to' this suggests that you can not already do this. So if you would like you son to speak English then you would say 'I would like my son to be able to speak English'

*He can speak English. This means that you have the ability to do something . This also means the same thing with been able to do something. You can use these terms interchangeably to mean the same thing. For example: He can run fast. He is able to run fast He can dance. He is able to dance.

bilingual - able to speak two or more languages. Since I'm assuming your child speaks or will speak Japanese, learning English will make her bilingual. I want my child to be fluent in English. - being fluent in a language means that you cna speak it freely and proficiently, almost at a native level

This is how you can say that you want your child to speak English. The difference between "can" and "be able to" is that "can" is used for something that is able to be done in the present conditions. If you need to learn a skill then you need to use "to be able to" because while you could be able to do the task, at the moment you cannot. I hope that this helps. :)