English Subject Pronouns (I, you, he...)
Subject pronouns are the 'doers' of the action, making your English smooth and natural.
- • Subject pronouns replace nouns doing the action.
- • Formed by `I, you, he, she, it, we, they`.
Browse the grammar system by level and category, then open clear explanations with practical examples.
Subject pronouns are the 'doers' of the action, making your English smooth and natural.
Master 'am,' 'is,' 'are' to confidently build foundational English sentences about everything!
Mastering `am not`, isn't, and aren't unlocks clear negative communication with `to be`.
Flip the be verb and the subject to ask 'yes/no' questions in English.
Possessive adjectives tell *whose* something is, always coming before a noun to show ownership.
Demonstratives point to objects based on their distance from the speaker and their quantity (singular or plural).
Turning one into many is easy with -s, -es, or -ies!
Learn the unique plural forms of these common nouns; they don't just add '-s'!
Choose 'a' or 'an' based on the very first sound you hear, not the letter you see.
Use the when both you and your listener know exactly which thing you're talking about.
A, an, and the clarify if you mean 'any' or 'that specific' thing.
Use object pronouns (me, you, him/her, it, us, them) after verbs and prepositions to represent the receiver.
Use the base verb form for I, You, We, They to describe routines and facts.
Always add -s or -es to verbs when the subject is he, she, it, or a single object.
Always add an '-s' to verbs when the subject is 'he,' 'she,' 'it,' or a singular noun.
Master 'have' and 'has' by remembering 'he, she, it' always take 'has' for possession and description.
Do or does always join have for questions and negatives!
Master don't and doesn't to confidently negate present actions and habits.
Unlock conversation by using do and does to ask about habits and facts.
Unlock specific information by using What, Where, and When with correct word order.
Negation makes sentences negative; master 'not' with 'be', 'can', and 'do/does'.
Master "in," "on," and "at" to precisely describe locations and sound natural!
Use these spatial prepositions to describe exactly where objects are located in relation to one another.
Think of a pyramid: in for large periods, on for days, and at for precise times.
Mastering at, on, and in unlocks clear communication for time and location.
Master from and to to clearly express origin and destination in English.
Mastering 'with' and 'without' lets you add essential details about companionship, tools, and absence.
Master positive commands by using the base verb form for clear, direct instructions and requests.
'Don't' is your go-to for telling someone to stop or avoid an action.
A tiny 'please' transforms demands into polite, respectful requests.
Grammar is the foundation of language fluency. Without understanding grammar patterns, you can memorize vocabulary but struggle to form correct sentences. Here's why structured grammar study matters:
Move beyond memorized phrases. Understand the rules so you can create original, correct sentences in any situation.
Grammar is tested in every major language exam — IELTS, DELE, DELF, JLPT, HSK, TOPIK, and more. Our CEFR-aligned curriculum maps directly to exam requirements.
Knowing grammar helps you parse complex sentences, understand nuance, and follow conversations even when speakers use advanced constructions.
Students who study grammar systematically reach fluency faster than those who rely on immersion alone. Structure accelerates learning.
Start with your CEFR level — from A0 Zero Point to C2 Mastery. Not sure? Begin at A0 and progress at your own pace.
Each chapter covers a grammar topic with clear explanations, pattern tables, and real-world example sentences.
Test your understanding with interactive exercises — fill-in-the-blank, multiple choice, sentence building, and translation practice.
Your progress is saved automatically. Complete chapters, unlock new levels, and watch your grammar mastery grow.
SubLearn covers 780 English grammar rules organized across 7 CEFR proficiency levels (from A0 to C2), spanning 126 structured chapters. Each rule includes clear explanations, real-world examples, and interactive practice exercises.
Our English grammar curriculum covers CEFR levels from A0 to C2. Each level is designed to match your current proficiency — beginners start with basic sentence patterns at A1, while advanced learners tackle nuanced structures at C1-C2.
Yes! All English grammar rules, explanations, and examples are completely free to access. You can browse the full curriculum, read detailed explanations, and practice with exercises at no cost.
Grammar is organized into 126 thematic chapters following the CEFR framework. Each chapter groups related rules together — for example, verb tenses, sentence structure, or particles — so you can learn related concepts in a logical sequence.
Yes! Create a free account to track which grammar rules you've studied, see your progress across all CEFR levels, and pick up exactly where you left off. Your learning progress syncs across devices.
Learning multiple languages? Check out our grammar guides for other languages:
We use essential cookies for sign-in, security, and preferences. Optional analytics starts only if you accept.
Add to your home screen for a faster, app-like experience
Fastest option
No past conversations yet.
AI-powered support
Would you like to create a support ticket? A human agent will help you.
You've used your free messages
Sign up for unlimited AI chatAI-powered — answers may not always be accurate