Grammar Topics
Browse and filter all grammar topics by level or category.
134 topics found
Could
Could serves as past ability, polite request, present possibility, and conditional ability. Learn when to use could vs was able to, and how could have expresses unrealised past possibilities.
Indefinite Pronouns (someone, anything, nobody, everyone)
Pronouns that refer to non-specific people or things: someone, anyone, no one, everyone, something, anything, nothing, everything.
Gerunds and Infinitives
When to use the -ing form (gerund) versus to + infinitive after verbs, adjectives, and nouns.
Passive Voice (Introduction)
Shifting focus from the doer to the action/receiver with be + past participle.
Basic Phrasal Verbs
Common verb + particle combinations: give up, look after, turn on, find out — and how to use them.
Shall
Shall is used for offers (Shall I?) and suggestions (Shall we?) in everyday British English, and for binding obligations in formal and legal contexts.
Reported Speech (Introduction)
Reporting what someone said using reporting verbs and tense backshift: He said he was tired.
Question Tags
Short questions added to the end of statements to seek confirmation: You're coming, aren't you?
Indirect Questions
Polite question forms embedded in statements: Could you tell me where the station is?
Too and Enough
Too (more than necessary/desired) and enough (sufficient) with adjectives and infinitives.
So and Such
So + adjective/adverb and such + (a) noun phrase to express degree and add emphasis.
Advanced Article Usage
Advanced rules for a/an, the, and zero article—including generics, unique nouns, and institutional uses.