English grammar library
Every English grammar topic, explained with examples that stick.
Parrot's English grammar library covers tenses, modals, verb forms, nouns and articles, adjectives and adverbs, prepositions, and sentence structure. Each page gives you the rule, the form table, worked examples, the mistakes learners actually make, and a quick check to confirm it landed.
Determiners & Quantifiers
Adjectives & Adverbs
- Adverbs of Manner
- Adverbs of Time
- Comparatives and Superlatives
- Adjectives in Sentences
- Adverbs of Place
- How Often
- Adverbials
- Comparatives
- Adverbs in a Sentence
- Adjective Order
- Adjectives
- Adverbs of Possibility
- Extreme Adjectives
- Intensifiers
- Comparative Adverbs
- Adjectives with Prepositions
- -ed and -ing Adjectives
- Still, No Longer, Already, and Yet
- So and Such
- Already, Just, and Yet
- Comparative Modifiers
- Intensifiers and Mitigators
- Adverbs of Direction
- Adverbs of Location
- Mitigators
Confusing Words
Modals
- Would
- Modal Verbs
- Could
- May vs. Might
- Asking for Permission
- Requests, Offers, and Invitations
- Used To vs. Would
- Past Modals
- Modals of Obligation
- Past Ability and Permission
- Modals of Possibility
- Will and Would
- Will Have and Would Have
- Can for Ability
- Present Modals
- Have To and Have Got To
- May, Might, and Could
- Making Suggestions
Nouns & Articles
- Reflexive Pronouns
- Personal Pronouns
- Countable and Uncountable Nouns
- Possessive Pronouns
- Articles in English
- Demonstrative Pronouns
- Possessive Adjectives
- Noun Phrase Examples
- The Indefinite Article (A / An)
- Relative Pronouns
- Pronouns
- Use of Articles
- 20 Examples of Pronouns in a Sentence
- Group Nouns
- Indefinite Pronouns
- Nouns in English
- Possessives
- Plural Nouns
- Possessive Nouns
- Noun Modifiers
- Reciprocal Pronouns
- Possessive 'S
- Reflexive Pronouns Examples
- Proper Nouns
- One and Ones
- Uncountable Nouns List
- Omitting Relative Pronouns
- Pronouns in Questions
Prepositions
Punctuation & Spelling
Sentence Structure
- Questions
- Ellipsis
- Negative Sentences
- Relative Clauses
- There Is and There Are
- Cleft Sentences
- Dates in English
- How Long
- Participle Clauses
- Contrasting Words and Phrases
- Inversion
- Non-Defining Relative Clauses
- Wish Sentences
- Time Clauses
- It and There as Dummy Subjects
- Although, Even Though, Despite, In Spite Of
- Short Forms (Contractions)
- Avoiding Repetition
Tenses
- Past Tenses
- Present Perfect Tense
- Simple Present Tense
- Present Tenses
- Past Continuous Tense
- Future Perfect Tense
- Future Tenses
- Past Perfect Tense Examples
- Simple Past Tense Examples
- Present Continuous
- Past Perfect Tense
- Present Perfect Continuous
- Present Simple
- Past Continuous
- Present Perfect
- Talking About the Past
- Future Forms
- Present Indefinite Tense Formula
- The Continuous Form
- Future Probability
- Unreal Tenses
- The Perfect Aspect
- Talking About the Present
Verb Forms
- Active and Passive Voice
- Reported Speech
- Zero Conditional Sentences
- Linking Verbs
- Phrasal Verbs
- Question Tags
- Verb Phrases
- The Infinitive
- Third Conditional
- Irregular Verbs
- The Verb To Be
- Stative Verbs
- Passive Voice
- Reporting Verbs
- Verbs in English
- Be Verbs
- Have Got and Has Got
- Reported Speech Questions
- Advanced Passive Forms
- The -ing Form
- Uses of Used To
- Verbs Followed by -ing
- Wishes: Wish and If Only
- Ergative Verbs
- Verb Structure
- Infinitive of Purpose
- Verbs Followed by a Gerund or an Infinitive
- Multi-Word Verbs
- Verbs with Two Objects
- Infinitive Verbs
- Inverted Conditionals
- Separable and Inseparable Phrasal Verbs
- Delexical Verbs
- -ing Verb List
More topics
Frequently asked questions about English grammar
- What is the best order to learn English grammar?
- Start with the verb to be and the present simple, then articles (a, an, the) and plural nouns, then the past simple and the present continuous. After that come the present perfect, modal verbs like can and should, and comparatives. The conditionals, the passive, reported speech, and relative clauses belong to the intermediate stage. Every page here links to the topic that logically follows it.
- How many tenses does English have?
- Twelve, if you count every combination of time (past, present, future) and aspect (simple, continuous, perfect, perfect continuous). In practice, five carry most everyday speech: present simple, present continuous, past simple, present perfect, and will for the future. The tenses section explains each one and shows them side by side.
- Do I need to study grammar rules to speak English well?
- You need to understand how English works, not to memorise charts. Research on comprehensible input shows that grammar is acquired through repeated exposure to language you understand, with the rules serving as a reference when something puzzles you. These pages give you that reference: a clear explanation, real examples, and a quick check.
- What are the most common English grammar mistakes?
- Leaving out articles or using the wrong one, forgetting the third-person -s in the present simple, mixing up the present perfect and the past simple, putting adverbs in the wrong place, and using the wrong preposition after a verb or adjective. Each grammar page here has a common mistakes section built around the errors learners make most.
- Can I learn English on Parrot today?
- Not yet. Parrot teaches Spanish today, and more languages are on the roadmap. This grammar library is free to use right now, and you can join the waitlist to hear the moment the English course launches.