Here's why and some better options:
* Missing auxiliary verb: You need the auxiliary verb "to" before "make."
* Subject-verb agreement: "I want" is the correct subject-verb agreement.
Here are some ways to express the same idea correctly:
* "I want to make him speak English." (This is the most direct and natural way to say it.)
* "I want him to speak English." (This emphasizes the goal of him speaking English.)
* "I'm trying to get him to speak English." (This suggests you're putting effort into it.)
* "I'd like him to learn English." (This is a more polite and indirect way to say it.)
The best option depends on the context and how you want to convey your intent.