French 1 • Language Systems (Grammar & Syntax)

Verb + Infinitive Patterns — I can use common verb + infinitive patterns to express what I like/want/need to do.

Master the essential French structure that lets you talk about your desires, preferences, and needs.

Language characters with a beginner book and pronunciation waves for French 1
Inside this lesson 10 sections 5 questions 6 figures

SECTION 1

Historical Context & Motivation

Have you ever wanted to say something like "I want to travel" or "She likes to dance" in French? In English, we pair a main verb ("want," "like") with an infinitive ("to travel," "to dance") all the time without even thinking about it. French works in a remarkably similar way, and this verb + infinitive pattern is one of the most useful tools you can learn early in your French journey. Understanding how this structure evolved and why it matters will help you unlock a huge amount of everyday communication.

French descends from Latin, where infinitive constructions already played a central role. Over the centuries, as Latin morphed into Old French and then Modern French, the language simplified many of its verb forms but kept the infinitive as a workhorse—a kind of "base form" of the verb that could be plugged in after conjugated verbs to express complex ideas with minimal effort. Let's look at a brief timeline of how this pattern developed.

100 BCE–400 CE • Latin Origins

Classical Latin uses infinitive constructions extensively. Verbs like volo (I want) are regularly followed by infinitives such as cantare (to sing), creating the ancestor of the French pattern.

800–1200 • Old French Emerges

As Vulgar Latin evolves into Old French, the infinitive ending -are becomes -er. Verb + infinitive structures remain a core way to express desires and intentions.

1500–1700 • Standardization of Modern French

The Académie française is founded (1635) and begins standardizing grammar. The verb + infinitive pattern is formally recognized as a fundamental grammatical structure in French.

Present Day • Everyday Communication

Today, verb + infinitive patterns are among the most frequently used constructions in spoken and written French. They appear in texting, social media, song lyrics, and everyday conversation.

The central question this lesson addresses is straightforward: How do you combine a conjugated verb with an infinitive in French to express what you like, want, or need to do? Once you master this pattern, you'll be able to form hundreds of sentences with just a handful of key verbs.

SECTION 2

Core Principles & Definitions

Before diving into examples, let's establish the foundational ideas behind verb + infinitive patterns. An infinitive is the unconjugated, "base" form of a verb—the form you find in the dictionary. In French, infinitives end in -er (like parler), -ir (like finir), -re (like vendre), or -oir (like vouloir). When you place an infinitive after a conjugated verb, you create a verb + infinitive pair that expresses a more complex idea than either verb alone.

1

Conjugated Verb First

The first verb is always conjugated to match the subject (je, tu, il/elle, nous, vous, ils/elles). Only the first verb changes form; the second stays in the infinitive.
2

Infinitive Stays Unchanged

The infinitive never changes, no matter who the subject is. Whether you say je veux manger or nous voulons manger, manger stays the same.
3

No Word Between (Usually)

Most common verb + infinitive pairs in French 1 require no preposition (no "de" or "à") between them. Verbs like vouloir, pouvoir, devoir, aimer, préférer, détester connect directly to the infinitive.
4

Negation Wraps the Conjugated Verb

To make the sentence negative, place ne...pas around the conjugated verb only. Example: Je ne veux pas manger. (I don't want to eat.)
✦

KEY TAKEAWAY

Think of the verb + infinitive pattern like a team of two players. The first verb is the captain—it changes its jersey (conjugation) to match the team roster (subject). The second verb is the specialist—it always wears its original uniform (infinitive form) and tells us what action is actually happening. The captain calls the play; the specialist executes it.

SECTION 3

Visual Explanation

Verb + Infinitive Pattern StructureSENTENCE FORMULASubject + Conjugated Verb + Infinitive (+ rest of sentence)SUBJECTJe / Tu / Il(Who is doing it?)CONJUGATED VERBveux / aime / dois(Changes with subject)INFINITIVEmanger / danser(Never changes)EXAMPLEJeveuxmangerune pizza.TRANSLATIONI want to eat a pizza.
This diagram shows the three-part structure: the subject (purple), the conjugated verb (pink), and the infinitive (cyan). Notice how only the middle piece changes with the subject.

As the diagram shows, the formula is refreshingly simple. You pick your subject, conjugate the first verb to match it, and then attach the infinitive directly after. The infinitive carries the meaning of the actual action, while the conjugated verb provides the "flavor"—whether you want to do it, like to do it, need to do it, or can do it. Once you memorize the conjugations of these key verbs, you can combine them with any infinitive in the language.

SECTION 4

How It Works — Key Verbs & Conjugations

To use verb + infinitive patterns effectively, you need to know the conjugations of the most common "trigger" verbs—the verbs that frequently appear before infinitives. Let's break down the six most important ones for French 1, grouped by meaning.

Expressing Want & Ability

Subjectvouloir (to want)pouvoir (to be able to)devoir (to have to / must)
jeveuxpeuxdois
tuveuxpeuxdois
il / elle / onveutpeutdoit
nousvoulonspouvonsdevons
vousvoulezpouvezdevez
ils / ellesveulentpeuventdoivent

Conjugations of vouloir, pouvoir, and devoir in the present tense

Expressing Preference

Subjectaimer (to like/love)préférer (to prefer)détester (to hate)
jeaimepréfèredéteste
tuaimespréfèresdétestes
il / elle / onaimepréfèredéteste
nousaimonspréféronsdétestons
vousaimezpréférezdétestez
ils / ellesaimentpréfèrentdétestent

Conjugations of aimer, préférer, and détester in the present tense

⚠

Watch Out!

In English, we say "to eat" with the word "to" before the verb. In French, the infinitive already contains that idea—manger means "to eat." So je veux manger literally translates as "I want to-eat"—you do not add a separate word for "to."

SECTION 5

Detailed Breakdown — Verb Categories

Not all verbs that precede infinitives work the same way. In French 1, the verbs you encounter most often connect directly to the infinitive with no preposition in between. However, as you advance in French, you'll discover verbs that require the preposition à or de before the infinitive. The diagram below classifies these three categories so you can see the big picture.

Three Categories of Verb + Infinitive ConnectionsDIRECT(verb + infinitive)vouloirpouvoirdevoiraimerpréférerdétesteradorerespérer★ FOCUS for French 1 ★Je veux danser.I want to dance.WITH à(verb + à + infinitive)commencer àapprendre àréussir àaider à(Coming in French 2+)Il commence à lire.He begins to read.WITH de(verb + de + infinitive)essayer dedécider deoublier derefuser de(Coming in French 2+)Elle essaie de chanter.She tries to sing.In French 1, you will focus on the DIRECT column. The à and de columns are previews for future study.
The three columns show the three categories: direct connection (no preposition), connection with à, and connection with de. For French 1, focus your energy on the green column.

For now, commit the green column to memory. The verbs vouloir, pouvoir, devoir, aimer, préférer, and détester are your bread and butter. Each one connects directly to any infinitive without any preposition in between. As you advance to French 2 and beyond, you'll gradually learn which verbs belong in the yellow and pink columns. For now, just be aware that those categories exist so you aren't surprised later.

💡

Pro Tip

A great way to practice is to pick one infinitive (like voyager — to travel) and cycle through all six key verbs: Je veux voyager. Je peux voyager. Je dois voyager. J'aime voyager. Je préfère voyager. Je déteste voyager. Each sentence has a different meaning, but the structure is identical!

SECTION 6

Worked Example

Let's walk through a complete example. Imagine you want to say: "We must study French, but we prefer to watch a film." Let's build this sentence step by step.

Building a Compound Sentence with Two Verb + Infinitive Pairs

  1. 1

    Step 1 — Identify the Ideas

    The English sentence has two clauses, each with a verb + infinitive pair. Clause 1: "We must study French." Clause 2: "We prefer to watch a film." The connector is "but" = mais.
    Two verb + infinitive pairs needed, connected by mais
  2. 2

    Step 2 — Select and Conjugate the First Verb

    "Must" = devoir. The subject is "we" = nous. Conjugating devoir for nous gives us devons.
    Nous devons
  3. 3

    Step 3 — Attach the First Infinitive

    "To study" = étudier. Since devoir is a direct-connection verb, we attach the infinitive right away. "French" = le français.
    Nous devons étudier le français
  4. 4

    Step 4 — Build the Second Clause

    "Prefer" = préférer. Conjugated for nous: préférons. "To watch" = regarder. "A film" = un film.
    nous préférons regarder un film
  5. 5

    Step 5 — Combine with the Connector

    Join the two clauses with mais (but) and add proper punctuation.
    Nous devons étudier le français, mais nous préférons regarder un film. (We must study French, but we prefer to watch a film.)
ℹ

Negation Bonus

What if we don't want to study? Wrap ne...pas around the conjugated verb: Nous ne voulons pas étudier. (We don't want to study.) The infinitive stays untouched after pas.

SECTION 7

French vs. English — Similarities & Differences

The verb + infinitive pattern is one of the areas where French and English actually overlap quite a bit. However, there are some important differences that can trip up English speakers. The table below highlights the key similarities and differences.

FeatureEnglishFrench
Basic word orderSubject + verb + to + verbSubject + verb + infinitive (no 'to' word needed)
The word 'to'Separate word before the base verb: "to eat"Built into the infinitive ending: manger = to eat
Negation placement"I do not want to eat" — helper 'do' carries the negative"Je ne veux pas manger" — ne...pas wraps the conjugated verb
Gerund alternative"I like eating" (gerund -ing is common)"J'aime manger" — French uses the infinitive, not a gerund
PrepositionsRarely needed between verb and infinitiveSome verbs require à or de (but not the French 1 core verbs)

Comparing verb + infinitive patterns in English and French

✦

KEY TAKEAWAY

Think of the French infinitive like a USB drive: it comes fully loaded with the meaning "to + action." In English, you need a separate adapter (the word "to") before plugging the verb in. In French, the adapter is already built into the device. That's why manger alone means "to eat"—no extra word needed.

SECTION 8

Connection to Advanced French

The verb + infinitive pattern you're learning now is the foundation for much more complex constructions that you'll encounter in French 2, 3, and beyond. Mastering the direct-connection verbs now will make it much easier to add preposition-based patterns later. Here's a preview of how this concept grows.

ConceptFrench 1 (Now)French 2–4 (Future)
Verb connection typeDirect only (vouloir, pouvoir, devoir, aimer, préférer, détester)Direct + à verbs + de verbs (50+ verbs total)
TensePresent tense conjugation onlyPast, future, conditional: "Je voulais manger" (I wanted to eat)
Pronoun placementNot yet addressedObject pronouns go before the infinitive: "Je veux le manger" (I want to eat it)
ComplexitySimple two-verb chainsThree-verb chains: "Je vais pouvoir manger" (I'm going to be able to eat)

How verb + infinitive patterns grow across French levels

The exciting takeaway is that the skill you're building right now—recognizing the conjugated verb + infinitive structure—will serve you for your entire French career. Every new verb you learn can potentially slot into this pattern. You're not just memorizing sentences; you're learning a generative system that lets you create an infinite number of original sentences.

SECTION 9

Practice Problems

Test your understanding of verb + infinitive patterns with the following five problems, arranged from basic recall to critical thinking.

Question 1: CONCEPTUAL

In the sentence Tu veux danser (You want to dance), identify which verb is conjugated and which is in the infinitive. Explain why only one verb changes form.
Show answer
The conjugated verb is veux (from vouloir), and the infinitive is danser (to dance). Only the first verb is conjugated because it must agree with the subject (tu). The second verb stays in the infinitive because it simply names the action—it doesn't need to match any subject. This is the core rule of the verb + infinitive pattern: conjugate the first, keep the second as-is.

Question 2: BASIC CALCULATION

Translate into French: "She can sing." Use the verb pouvoir and chanter.
Show answer
Elle peut chanter. The subject is elle (she). We conjugate pouvoir for the third person singular: peut. Then we attach the infinitive chanter directly after, with no preposition in between.

Question 3: INTERMEDIATE

Translate into French: "They (masculine) do not like to work." Use aimer and travailler. Pay special attention to where the negation goes.
Show answer
Ils n'aiment pas travailler. The subject is ils. We conjugate aimer → aiment. To negate, we wrap ne...pas around aiment. Note that ne becomes n' before the vowel in aiment. The infinitive travailler follows after pas.

Question 4: APPLIED

Your French pen pal asks what you do on weekends. Write three sentences in French about yourself using three different verb + infinitive pairs. Use at least one sentence about what you like, one about what you must do, and one about what you prefer.
Show answer
Answers will vary. A strong response would look like: J'aime jouer au football. Je dois faire mes devoirs. Je préfère regarder des films. (I like to play soccer. I must do my homework. I prefer to watch films.) Each sentence follows the subject + conjugated verb + infinitive pattern. The first uses aimer (like), the second uses devoir (must), and the third uses préférer (prefer). All three infinitives remain unchanged.

Question 5: CRITICAL THINKING

An English speaker writes: "Je veux à manger une pizza." Identify the error, explain why it happened (thinking about English interference), and provide the corrected sentence. Then explain why some French verbs DO need a preposition before the infinitive while vouloir does not.
Show answer
The error is the insertion of à between veux and manger. The student likely translated "to" from "I want TO eat" as à. The corrected sentence is: Je veux manger une pizza. In French, vouloir is a direct-connection verb—no preposition is needed. Some French verbs (like commencer à or essayer de) require a preposition because of historical convention in French grammar. There is no universal rule that predicts the preposition—it must be memorized for each verb. The key lesson: do not translate 'to' as a separate word in French verb + infinitive structures.

SUMMARY

Summary

Summary

The verb + infinitive pattern is one of the most versatile structures in French. To use it, you conjugate the first verb to match your subject and then attach the infinitive (the unchanged base form ending in -er, -ir, -re, or -oir) directly after it. The six core verbs for French 1—vouloir (to want), pouvoir (to be able to), devoir (to have to), aimer (to like), préférer (to prefer), and détester (to hate)—all connect directly to the infinitive with no preposition.

To make a sentence negative, wrap ne...pas around the conjugated verb only—the infinitive stays outside the negation. Remember that unlike English, French does not add a separate word for "to" before the infinitive; the meaning is built into the infinitive ending itself. Mastering this pattern now creates a strong foundation for the preposition-based verb + infinitive patterns (à and de) that you will encounter in French 2 and beyond.

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