Basic English grammar focuses on building sentences using a Subject (who/what) + Verb (action) + Object (receiver) structure. Key pillars include using nouns for people/places/things, verbs for actions or states of being, and adjectives/adverbs for description. Essential rules involve subject-verb agreement (singular/plural), using articles (a/an/the), and using the correct tense (past, present, future). 

1. Sentence Structure (The Foundation)

  • Subject: Who or what performs the action (e.g., The cat).

  • Verb: The action or state of being (e.g., runs, is).

  • Object: Who or what receives the action (e.g., the mouse).

  • Example: [The cat] (subject) [chased] (verb) [the mouse](object). 

2. Key Parts of Speech

  • Nouns: People, places, or things (dog, city, desk).

  • Pronouns: Replace nouns to avoid repetition (I, you, he, she, it, we, they).

  • Verbs: Express action (run) or state of being (is, am, are).

  • Adjectives: Describe nouns (blue, fast, smart).

  • Adverbs: Describe verbs, adjectives, or other adverbs, often ending in -ly (quickly, very).

  • Articles: A/An (general/first mention) and The (specific/known). 

3. Simple Verb Tenses

  • Present: Things happening now or habitually (e.g., She walks).

  • Past: Actions that happened before now (e.g., She walked).

  • Future: Actions not yet happened, usually with "will" (e.g., She will walk). 

4. Core Grammar Rules

  • Subject-Verb Agreement: Singular subjects need singular verbs (He runs); plural subjects need plural verbs (They run).

  • Word Order: English generally follows Subject-Verb-Object (SVO).

  • Capitalization: Capitalize the first letter of a sentence and proper nouns (names, places).

  • Punctuation: Use periods (.) for statements, question marks (?) for questions, and exclamation points (!) for emphasis.

  • Articles: Use "a" before consonants (a dog) and "an" before vowels (an apple). 

5. Basic Punctuation

  • Comma (,): Separates items in a list or connects two related ideas.

  • Period (.): Ends a sentence.

  • Question Mark (?): Ends a direct question.

    What's in a -Nym?

    There are all sorts of words in English based on the -onym word part, which derives from a Greek word that means name. Probably everyone knows these:

    • homonym (same + name): a word that sounds like another word (example: to, too, two).

    • synonym (together + name): a word that means the same as another word (example: happy, joyful, cheerful, ecstatic). delighted.antonym (against + name): a word that's the opposite of another word (example: good/bad).

    • pseudonym (false + name): a fictitious name for a person (example: Snow White).

    • acronym (top + name): a word formed from letters in a phrase (example: NASA, laser, AIDS, radar, and depending on how broadly you want to define the word, perhaps also ETA and modem).