Okay, kid, let's talk about control in language. Have you ever played a game where someone tells you what to do and you have to do it? That's sort of what control means in language.
In grammar, control refers to a situation where one word or phrase has power over another one, and makes it act a certain way. For example, let's say I tell you "I want you to eat your vegetables." The word "I" has control over the verb "eat" because it's telling you what to do.
Another example might be "She reminded herself to call her friend tomorrow." In this sentence, the word "she" has control over the verb "reminded," because she's the one who's doing the reminding.
Control can also come up when we use words like "to" or "for." For example, "He bought a present for his mom" has control, because "for his mom" is telling you who the present is for.
Overall, control in language is just a way of describing how different words or phrases can have power over each other, and make them do certain things. It might sound a little complicated, but once you start noticing it, you'll see it happening all the time!