Difference-between-a vs. An: What's the Difference?
It's about sound, not spelling. If you're not sure, say it out loud.
- • Use 'a' before consonant sounds and 'an' before vo...
- • The choice depends on the sound of the next word,...
Browse the grammar system by level and category, then open clear explanations with practical examples.
It's about sound, not spelling. If you're not sure, say it out loud.
`Every Monday` stresses the consistent series; Mondays describes a general habit.
Though it feels plural, 'everybody' is grammatically singular, so it takes a singular verb.
If it ends in '-body' or '-one', treat it as one person and use a singular verb.
'Everyone' always takes a singular verb, no matter how many people it represents. Embrace the 's'!
Always remember, 'everyone' acts as a singular noun, so consistently pair it with singular verbs like 'is' or 'has'!
Equipment is always singular, like water or furniture. Never add an ‘s’.
It's all about location: use `favor` for the US and `favour` for the UK.
The difference between a language and a dialect is often political and social, not linguistic.
An idiom's meaning isn't in the words; it's in the shared cultural understanding of the whole expression.
You 'discuss something', but you 'talk about something'. Never mix them up.
`Encase` is for physically covering; `in case` is for preparing for 'what if'.
`A few` is a simple observation; `few` is a negative judgment; `the few` is a specific group.
`Few` feels negative and small; `some` is neutral and non-specific.
They're identical twins that mean 'but anyway'. Just never, ever say 'despite of'.
`Although` needs a full clause (subject + verb); `despite` needs a noun or gerund.
Master phrasal verbs to unlock natural, everyday English and sound like a local.
Mastering phrasal verbs unlocks natural, everyday English, making you sound like a native speaker.
Master phrasal verbs to unlock natural, everyday English conversations and sound truly fluent.
Mastering `depend on` and `rely on` with the correct on preposition boosts your B1 fluency for expressing necessity and trust.
Don't `let down` your English skills! Mastering this phrasal verb means understanding disappointment caused by unmet expectations.
`Dress up` means to put on special clothes, either formal or a costume, for a specific occasion.
Become an info-gathering pro: `find out` helps you uncover any fact you need!
Master `come across` to naturally express accidental discoveries and encounters in English.
Mastering noun-preposition pairs makes your English sound authentically natural and fluent.
Don't fear the 'dangling' preposition; it's natural in modern English!
The Present Perfect builds a bridge from your past to your present. Master it for fluent connections!
The Present Perfect links your past with your now. Master it!
Connect the recent past to the present using Present Perfect with lately or recently.
During + noun (refers to a period). For + duration (how long). While + clause (subject + verb, two things happening at the same time).
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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.
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