Editing Latin Sentences — I can edit a simple Latin sentence to correct basic errors in endings and agreement in a supported task.

Latin is an inflected language, which means that the endings of words — not just their position in the sentence — tell you who is doing what to whom. This feature made Latin extraordinarily precise, and Roman writers, teachers, and scribes spent centuries refining rules for how endings must agree. Understanding that tradition is the first step toward editing your own Latin sentences with confidence.

From Varro to your Latin 1 classroom, the core challenge has stayed the same: every word in a Latin sentence carries information in its ending, and if one ending is wrong the whole sentence breaks down. The question we address in this lesson is straightforward — how do I find and fix basic errors in noun and verb endings so my Latin sentences are grammatically correct?

Before you can edit a Latin sentence, you need to understand the rules that govern how words relate to each other. Latin agreement boils down to a few key principles. When these principles are violated, the sentence contains an error — and your job as an editor is to identify and correct it.

The diagram below shows how the parts of a simple Latin sentence connect through agreement. Notice that arrows link the subject noun to both its adjective and its verb, and each arrow is labeled with the type of agreement required. When an ending is wrong, the arrow "breaks," signaling an error.

When you edit a Latin sentence, you are essentially checking each of these arrows. Does the adjective's ending reflect the same case, number, and gender as the noun it describes? Does the verb's ending match the subject's person and number? If not, you have found your error and can correct the mismatched ending.

Because Latin is not a math-based subject, our "formulas" here are grammatical patterns. Think of each rule below as an equation where the left side must equal the right side. When they don't match, you've found the error.

Knowing where errors typically hide makes editing much faster. The table below organizes the most frequent mistakes Latin 1 students make, along with what the incorrect form looks like, what it should be, and why the error happens.

Let's apply the editing checklist to a sentence that contains two errors. The sentence as given is: Agricolae bonus equus in agrō videt. (Intended meaning: "The good farmer sees a horse in the field.")

Different editing strategies work better for different types of errors. The table below compares three approaches you can use when reviewing Latin sentences, along with what each approach catches well and where it might fall short.

The basic editing skills you are building now form the foundation for everything you will do in more advanced Latin courses. As you progress, the sentences will get longer, the grammar will get more complex, and the types of agreement you need to check will multiply. The table below previews how today's concepts connect to what lies ahead.

By mastering the basics of ending agreement now, you are training your eye to spot patterns. When you later encounter a sentence with a relative clause and a participle, you will instinctively check whether every modifier agrees with the word it modifies — the same skill, just applied to more moving parts.

Each problem below presents a Latin sentence with one or more errors. Use the editing checklist to identify the mistake(s) and write the corrected sentence. The problems increase in difficulty.