English Grammar Rules
35 essential English grammar rules covering parts of speech, punctuation, sentence structure, and common errors. Perfect for SAT, IELTS, TOEFL, and academic writing.
All Cards in This Deck
Question
What is a noun?
Answer
A word that names a person, place, thing, or idea. Examples: teacher, London, freedom, dog.
Question
What is a pronoun?
Answer
A word used in place of a noun. Examples: he, she, it, they, we, I.
Question
What is a verb?
Answer
A word that expresses an action or a state of being. Examples: run, think, is, become.
Question
What is an adjective?
Answer
A word that describes or modifies a noun or pronoun. Example: The tall man wore a blue hat.
Question
What is an adverb?
Answer
A word that modifies a verb, adjective, or another adverb. Example: She runs quickly. He is very smart.
Question
What is a preposition?
Answer
A word that shows the relationship between a noun and another word. Examples: in, on, at, under, between.
Question
What is a conjunction?
Answer
A word that connects words, phrases, or clauses. Examples: and, but, or, so, because, although.
Question
What is an interjection?
Answer
A word or phrase expressing strong emotion. Examples: Wow! Oh! Ouch! Well!
Question
What is a subject?
Answer
The person or thing performing the action of a verb. In "The cat sat," the cat is the subject.
Question
What is an object?
Answer
The noun or pronoun that receives the action of the verb. In "She read the book," the book is the object.
Question
What is subject-verb agreement?
Answer
A subject and its verb must agree in number. Singular subjects take singular verbs. "She runs" / "She run"
Question
When do you use a vs an?
Answer
Use "a" before consonant sounds; use "an" before vowel sounds. a car, a university / an apple, an hour
Question
What is the difference between its and it's?
Answer
"Its" is possessive. "It's" is a contraction of "it is" or "it has." The cat licked its paw. It's a nice day.
Question
What is the difference between there, their, and they're?
Answer
"There" = location. "Their" = belonging to them. "They're" = they are.
Question
When do you use who vs whom?
Answer
Use "who" as a subject; use "whom" as an object. Who called? / To whom did you speak?
Question
What is a clause?
Answer
A group of words containing a subject and a verb. "She left early" is a clause.
Question
What is a phrase?
Answer
A group of related words without a subject-verb pair. "in the morning," "running fast"
Question
What is an independent clause?
Answer
A clause that can stand alone as a complete sentence. "I went to school."
Question
What is a dependent clause?
Answer
A clause that cannot stand alone; it depends on a main clause. "Because I was tired" needs a main clause to complete it.
Question
What is a run-on sentence?
Answer
Two or more independent clauses joined incorrectly without proper punctuation. "I was tired I went to sleep"
Question
What is a sentence fragment?
Answer
An incomplete sentence that lacks a subject or verb. "Running down the street."
Question
When do you use a comma before "and"?
Answer
Use a comma before "and" when joining two independent clauses: "She sang, and he danced."
Question
What is the Oxford comma?
Answer
The comma placed before "and" or "or" in a list of three or more items. "I bought apples, oranges, and bananas."
Question
What is a semicolon used for?
Answer
To join two closely related independent clauses. "She studied hard; she passed the exam."
Question
What is a colon used for?
Answer
To introduce a list, explanation, or quotation. "He had one goal: to win."
Question
What is the active voice?
Answer
The subject performs the action. "The dog bit the man." — preferred in most writing.
Question
What is the passive voice?
Answer
The subject receives the action. "The man was bitten by the dog."
Question
What is the simple past tense?
Answer
Describes a completed action in the past. Formed with verb + -ed (regular). She walked. He ran.
Question
What is the present perfect tense?
Answer
Describes an action that happened at an unspecified time or started in the past and continues. I have eaten. She has lived here for years.
Question
What is a dangling modifier?
Answer
A modifying phrase that does not clearly relate to the word it modifies. "Running down the street, the keys fell." (Keys don't run.)
Question
What is parallelism in grammar?
Answer
Using the same grammatical form for items in a series. "She likes reading, writing, and swimming."
Question
What is the difference between fewer and less?
Answer
Use "fewer" for countable nouns; "less" for uncountable ones. Fewer students / Less water.
Question
What is the difference between affect and effect?
Answer
"Affect" is usually a verb (to influence). "Effect" is usually a noun (the result). The cold affected her. The effect was immediate.
Question
When do you use lie vs lay?
Answer
"Lie" means to recline (intransitive). "Lay" means to put something down (transitive, needs an object). I lie down. I lay the book down.
Question
What is a gerund?
Answer
A verb form ending in -ing that functions as a noun. "Swimming is fun." "She enjoys cooking."