Adjectif + Infinitif (C'est facile à apprendre)
adjectif + to-infinitif pour un anglais super naturel et fluide.
Grammar Rule in 30 Seconds
Use 'to' + verb after adjectives to describe an action, express feelings, or give opinions about a task.
- Use 'to' after adjectives of difficulty like 'easy' or 'hard' (It's easy to learn).
- Use 'to' after adjectives of emotion like 'happy' or 'sad' (I'm happy to help).
- Add 'not' before 'to' for negative sentences (It's important not to forget).
Overview
to-infinitive. C'est l'un de ces outils super polyvalents qui vous font paraître moins comme un manuel scolaire et plus comme une vraie personne. Que vous vous plaigniez d'un jeu qui rame ou que vous disiez à un ami que vous êtes content de voir son TikTok devenir viral, cette structure est votre meilleure amie.to + verb). Nous l'utilisons pour décrire à quel point quelque chose est facile ou difficile, ce que nous ressentons par rapport à une action, ou pour juger le comportement de quelqu'un.How This Grammar Works
I am happy to meet you. Simple, non ? L'adjectif donne le ton, et l'infinitif nous dit de quoi il s'agit.
Formation Pattern
It is pour les déclarations générales ou I am / You are pour les personnes.
to plus la forme de base du verbe.
When To Use It
This game is fun to play. Utilisez-le lorsque vous êtes poli : I’m sorry to bother you.
Common Mistakes
-ing parce que cela semble naturel dans d'autres langues. Correct : It is easy to learn English, et NON 'It is easy learning English'.Contrast With Similar Patterns
interested, prennent toujours in + -ing.Quick FAQ
R: Principalement, oui ! Surtout ceux qui décrivent des sentiments, la difficulté ou des opinions.
Common Adjective + To-Infinitive Patterns
| Subject | Verb 'Be' | Adjective | Infinitive (to + verb) | Example |
|---|---|---|---|---|
|
It
|
is
|
easy
|
to learn
|
It is easy to learn.
|
|
I
|
am
|
happy
|
to help
|
I am happy to help.
|
|
They
|
were
|
surprised
|
to see
|
They were surprised to see us.
|
|
It
|
is
|
important
|
not to go
|
It is important not to go.
|
|
She
|
is
|
ready
|
to start
|
She is ready to start.
|
|
It
|
was
|
kind
|
to say
|
It was kind to say that.
|
Contractions in this Structure
| Full Form | Contraction | Usage |
|---|---|---|
|
It is easy
|
It's easy
|
Very common in speech
|
|
I am happy
|
I'm happy
|
Standard informal/neutral
|
|
It was not easy
|
It wasn't easy
|
Common in past tense
|
Meanings
This structure is used to provide more information about an adjective by following it with an infinitive verb. It often describes the difficulty, emotion, or necessity associated with an action.
Difficulty and Ease
Describing how hard or easy an action is to perform.
“It's hard to breathe in this heat.”
“The instructions were simple to follow.”
Emotional Reaction
Expressing how someone feels about doing something.
“I'm delighted to meet you.”
“She was surprised to see him there.”
Judgment and Character
Commenting on someone's behavior or character traits.
“It was kind of you to help.”
“It's rude to interrupt people.”
Necessity and Importance
Stating that an action is required or vital.
“It's important to arrive on time.”
“It is necessary to sign the form.”
Reference Table
| Adjectif | Signification | Example Sentence | Focus |
|---|---|---|---|
|
Easy
|
Pas difficile
|
It's `easy to learn` new words.
|
easy to learn
|
|
Hard
|
Difficile, exigeant
|
It was `hard to solve` the puzzle.
|
hard to solve
|
|
Important
|
Significatif, nécessaire
|
It's `important to listen` carefully.
|
important to listen
|
|
Pleasant
|
Agréable, sympa
|
It's `pleasant to walk` in the park.
|
pleasant to walk
|
|
Impossible
|
Impossible à faire
|
It's `impossible to predict` the future.
|
impossible to predict
|
|
Exciting
|
Excitant, stimulant
|
It's `exciting to start` a new project.
|
exciting to start
|
|
Glad
|
Heureux, content
|
I'm `glad to see` you again.
|
glad to see
|
Spectre de formalité
It is quite straightforward to complete the application. (Completing a task)
It's easy to finish the form. (Completing a task)
It's a breeze to do. (Completing a task)
It's a piece of cake to knock out. (Completing a task)
Adjectif + To-Infinitif : Ta boîte à outils d'opinions
Adjectifs courants
- Easy Pas difficile
- Hard Difficile
- Important Nécessaire
- Happy Content
Infinitifs courants
- to do effectuer une action
- to understand saisir le sens
- to say prononcer des mots
- to go partir
Modèle principal
- It's easy to use Exprimer une opinion générale
- She is happy to help Exprimer un sentiment personnel
Ce que ça fait
- Exprimer des opinions Ce que tu ressens à propos d'une action
- Décrire des caractéristiques Ce à quoi ressemble une action
To-Infinitif vs. Gérondif Après les Adjectifs
Dois-je utiliser 'Adjectif + To-Infinitif' ?
Exprimes-tu une opinion ou un sentiment à propos d'une ACTION ?
L'action suit-elle un adjectif comme 'easy', 'hard', 'important', 'happy' ?
Les adjectifs qui adorent les To-Infinitifs
Opinion/Caractéristique
- • Easy
- • Hard
- • Difficult
- • Simple
- • Impossible
- • Possible
- • Good
- • Bad
- • Fun
- • Boring
- • Interesting
Émotion/Sentiment
- • Happy
- • Glad
- • Sad
- • Pleased
- • Delighted
- • Excited
- • Surprised
- • Shocked
- • Upset
- • Angry
- • Disappointed
Nécessité/Importance
- • Important
- • Necessary
- • Essential
- • Crucial
- • Vital
- • Obligatory
Exemples par niveau
I am happy to help you.
It is good to see you.
It is easy to read this.
She is sad to go.
It is important to drink water.
It is not easy to learn Chinese.
Are you ready to order?
It is dangerous to swim here.
It is difficult for me to speak in public.
It was very kind of you to invite us.
It is necessary to wear a helmet.
I was surprised to find the door open.
The results are likely to be positive.
It is vital not to underestimate the competition.
He is always the first to arrive at work.
The instructions are too complicated to follow.
It is imperative to address these issues immediately.
She was relieved to have finished the marathon.
It is quite common for students to feel overwhelmed.
The book is well worth the effort to read.
It is incumbent upon the board to ensure transparency.
The theory is far too abstract to be applied practically.
He was loath to admit that he had been mistaken.
It is seldom easy to reconcile such disparate views.
Facile à confondre
Learners often use 'to' when a specific preposition is required by the adjective.
Both 'Learning is fun' and 'It is fun to learn' are correct, leading to choice paralysis.
Learners forget the 'to' after enough/too.
Erreurs courantes
It is easy learn.
It is easy to learn.
I am happy for see you.
I am happy to see you.
It is good to seeing you.
It is good to see you.
Is easy to go.
It is easy to go.
It is important to not forget.
It is important not to forget.
The book is easy for read.
The book is easy to read.
I am ready for go.
I am ready to go.
It is easy for me learning.
It is easy for me to learn.
It was kind for you to help.
It was kind of you to help.
I am sorry to being late.
I am sorry to be late.
It is easy that I learn.
It is easy for me to learn.
Structures de phrases
It is ___ to ___.
I am ___ to ___.
It is ___ for ___ to ___.
It was ___ of ___ to ___.
Real World Usage
It's great to hear from you!
I am eager to learn new skills.
It's easy to get lost in this city.
It's important to leave a note for the driver.
So happy to share this news!
It's necessary to take this twice a day.
Les types d'adjectifs à privilégier !
Le piège du gérondif vs. l'infinitif
It's easy to learn, PAS It's easy learning. "It's difficult to say."Préciser 'Pour qui'
for + nom/pronom juste après l'adjectif ! Par exemple, It's difficult for me to wake up early. "It's essential for us to practice."Parler comme un natif
It's + adjectif + to-infinitif rendra instantanément ton anglais plus naturel et conversationnel. C'est la marque d'un discours fluide, alors pratique-le souvent ! "It's great to see you!"Pas que 'It's' !
hard to complete' ou 'He is difficult to work with'. Ne te limite pas ! She is easy to talk to.
Smart Tips
Start your sentence with 'It's better to...' or 'It's important to...'. It sounds much more polite than a direct command.
Use the 'for [person]' bridge right after the adjective.
Always place 'not' as a guard in front of 'to'.
Switch 'for' to 'of' to sound more native when talking about someone's character.
Prononciation
The 'to' reduction
In natural speech, 'to' is often reduced to a weak 'tuh' /tə/.
Linking 'is' and 'easy'
The 's' in 'is' links to the 'e' in 'easy', sounding like /ɪzi/.
Emphasis on the Adjective
It's EASY to learn. (Stress on EASY)
Emphasizing the quality of the action.
Mémorise-le
Moyen mnémotechnique
Remember: 'Adjectives are the bridge, and TO is the glue.'
Association visuelle
Imagine a bridge connecting a 'Happy Face' (Adjective) to a 'Running Man' (Verb). The bridge is labeled 'TO'.
Rhyme
When an adjective is in your view, follow it up with 'to' and do!
Story
A man named 'It' was very 'Happy'. He wanted 'to help' his friend. He found it 'easy to carry' the bags, but 'hard to walk' up the stairs.
Word Web
Défi
Write 5 sentences about your day using 'It is [adjective] to [verb]'. Example: 'It is nice to drink coffee.'
Notes culturelles
British speakers frequently use 'It's kind of you to...' as a polite way to say thank you or accept a gift.
American English often uses 'It's important to...' in business settings to be direct but professional.
This structure is preferred in international business because it is clear and avoids the ambiguity of some gerund phrases.
The 'to' particle in English originally indicated direction (like 'towards'). Over time, it became a marker for the infinitive verb.
Amorces de conversation
Is it easy to find good food in your city?
What is the most important thing to do for a healthy life?
Were you surprised to see how much technology has changed?
Is it rude to use your phone at the dinner table?
Sujets d'écriture
Erreurs courantes
Test Yourself
It's so important ___ your friends.
Find and fix the mistake:
The book was difficult understanding.
Choose the correct sentence:
Translate into English: 'Es emocionante viajar a nuevos lugares.'
Answer starts with: ["I...
Score: /4
Exercices pratiques
8 exercisesIt is important ___ (brush) your teeth every day.
Find and fix the mistake:
It is difficult for me learning English grammar.
Which sentence is correct?
not / to / important / it / is / forget / .
How do you say this in English?
Match: 1. Happy, 2. Hard, 3. Ready
A: 'I'm so nervous about the test.' B: 'Don't worry, it's ___.'
Identify the incorrect sentence.
Score: /8
Practice Bank
12 exercisesIt's often challenging ___ focused during long lectures.
I'm happy helping you with your project.
Choose the correct sentence:
Translate into English: 'Es imposible terminar esto hoy.'
Arrange these words into a sentence:
Match the adjectives with the correct action:
The movie was thrilling ___ from start to finish.
It's too late starting now.
Which sentence is correct?
Translate into English: 'Fue amable de tu parte invitarme.'
Arrange these words into a sentence:
Match the emotions with what they relate to:
Score: /12
FAQ (8)
Yes, both are correct. However, `It is easy to learn` is much more common in spoken English because it emphasizes the adjective first.
We use `of` when the adjective describes the person's character (kind, mean, brave). We use `for` when the adjective describes the difficulty or effect of the action (hard, easy, important).
In casual speech, people say this often. However, in formal writing, you should put `not` before `to`: 'It's important not to forget.'
Most adjectives work, especially those describing difficulty, emotions, or opinions. However, some adjectives like `interested` or `afraid` often prefer a preposition + gerund (afraid of falling).
If you aren't using a person as the subject (like 'I am happy'), then yes, English requires the 'dummy' subject `It`.
Just change the verb 'be' to the past tense: `It was easy to learn` or `I was happy to help.` The infinitive part (`to learn`) stays the same.
Yes! This is a common extension: `It is too hot to eat` or `He is old enough to drive.`
It is neutral. It is used in both very formal academic writing and very casual text messages.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Es fácil de [verbo]
Spanish uses 'de' or 'para' instead of 'to'.
C'est facile à [verbo]
French has two different particles (à/de) while English mostly uses 'to'.
Es ist leicht zu [verbo]
The 'zu' in German often comes at the very end of the clause.
[Verb] no wa kantan desu
Japanese uses nominalization particles instead of an infinitive marker.
Min al-sahli an [verb]
Arabic uses a 'that' (an) conjunction rather than a 'to' particle.
Hen rongyi [verb]
Chinese has no infinitive marker or 'dummy' subject.
Learning Path
Prerequisites
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