Now that you have worked through a lot of material that includes these basic patterns, and you have compared grammatically correct and incorrect sentences, write down what you think is a rule that could explain what makes a sentence grammatically correct or not. For example, you might write something like: "verbs always match nouns in number, and they usually come before the noun." In other words, make your best guess for the grammar rule that makes sense out of the pattern(s) you see in the phrases you have been working with. Review if you need to, and you might briefly check your hunches against the sentences you have been working with in this or previous modules. Keep in mind that what you're after is your hunch, not a grammar rule from a text book. Then check your hunch with the explanation of this principle in the following pattern.

My hunch is that a grammatically correct sentence must have subject-verb agreement, meaning that the verb must match the subject in terms of number and person. Additionally, the word order in a sentence must follow a specific structure, such as subject-verb-object.

Checking this hunch against the sentences I have been working with, I can see that sentences like "The cat drinks milk" and "She walks to school" follow the subject-verb agreement rule and have a clear word order structure. On the other hand, sentences like "The cat drink milk" and "Walks she to school" do not follow these rules and are grammatically incorrect.

Therefore, my hunch seems to be supported by the examples I have been working with, and it appears that subject-verb agreement and word order are important aspects of creating grammatically correct sentences.