Past Participle Agreement with Être — I can make past participle agreement with être in supported contexts at an introductory level.

French, like all Romance languages, descends from Latin, a language with an elaborate system of word endings that signaled grammatical relationships. In Latin, adjectives and participles had to agree in gender and number with the nouns they described. As Latin evolved into Old French over several centuries, many of these endings disappeared, but one critical area preserved them: the connection between a past participle and its subject when the verb être (to be) is used as a helper verb. Understanding why French still requires this agreement helps you see that grammar rules are not random — they are living traces of history.

So what is the core question this lesson addresses? When you form the passé composé (a common past tense) with être as the helping verb, how do you make sure the past participle matches the subject in gender and number? Let's find out.

Before diving into the agreement rule, you need a clear understanding of four foundational concepts. The passé composé is a compound past tense that uses two parts: a helping verb (also called an auxiliary) and a past participle. Most French verbs use avoir as their helper, but a special group of verbs uses être. When être is the helper, the past participle must agree with the subject — just like an adjective.

The diagram below maps the decision process for making past participle agreement with être. Follow the flowchart from the top: identify your subject, determine its gender and number, and then add the correct ending to the past participle.

Notice how the base past participle allé gains an -e for feminine singular, an -s for masculine plural, and -es for feminine plural. The masculine singular form stays unchanged because it is the default or 'base' form. This pattern applies to every être verb you will encounter at this level.

The agreement mechanism can be broken down into a simple formula. Once you know the subject and have identified the verb as an être verb, you apply one of four endings. Think of it as a two-variable system: gender (masculine or feminine) and number (singular or plural).

A critical detail concerns mixed-gender groups. When a group contains even one masculine member, French treats the entire group as masculine plural. For example, if Marie and Pierre both arrived, you would say Ils sont arrivés (masculine plural), not arrivées. This is known as the rule of masculine default, and while debated in modern French, it remains the standard rule you need to follow at this level.

Not every French verb uses être in the passé composé — only a specific set. The famous mnemonic DR MRS VANDERTRAMP helps you remember them. Most of these verbs describe movement (going, coming, arriving) or a change of state (being born, dying). The table below lists each verb, its meaning, and its past participle.

Notice how many of these verbs come in natural pairs of opposites: monter/descendre (go up / go down), arriver/partir (arrive / leave), entrer/sortir (enter / go out), and naître/mourir (be born / die). Recognizing these pairs can help you remember the list more effectively. All reflexive verbs (those using se) also use être in the passé composé, but that topic goes beyond our introductory scope here.

Let's walk through the complete process of constructing a passé composé sentence with être, step by step. Suppose you want to say: "Marie and Sophie arrived at school."

Even after learning the rule, students frequently stumble in predictable ways. The table below identifies the most common errors, explains why they happen, and provides the correct form so you can train your eye to catch these mistakes.

The agreement rule you've learned here is just the beginning. As you advance in French, you will encounter more complex scenarios where past participle agreement comes into play. The table below previews how this introductory rule compares to the broader system you'll meet in French 3 and beyond.

Don't worry about memorizing these advanced rules now. The key insight is that the skill you're building — checking the subject, identifying gender and number, and adjusting the participle — is the exact same cognitive process you'll use for every level of agreement in French. Mastering it now at the introductory level gives you a strong foundation for everything that follows.

Test your understanding with these five problems. Each one builds on the previous, starting with basic recall and progressing to more nuanced application. Write out the full sentence before checking the answer.