Every word in the English language belongs to one of eight grammatical categories called parts of speech. Understanding the role each word plays is the foundation of clear, precise writing and reading comprehension.
1.1 The Eight Parts of Speech — Overview
| Part of Speech | Role | Key Questions | Examples |
|---|
| Noun | Names a person, place, thing, or idea | Who? What? | teacher, city, freedom, justice |
| Pronoun | Replaces a noun | Who? What? (substituted) | he, she, it, they, whom, this |
| Verb | Expresses action or state of being | What does the subject do / be? | run, is, think, become, seem |
| Adjective | Modifies a noun or pronoun | Which? What kind? How many? | tall, three, blue, ancient |
| Adverb | Modifies a verb, adjective, or another adverb | How? When? Where? To what degree? | quickly, very, never, here |
| Preposition | Shows relationship between a noun/pronoun and other words | Where? When? How related? | in, on, at, by, through, despite |
| Conjunction | Connects words, phrases, or clauses | How are these connected? | and, but, or, although, because |
| Interjection | Expresses emotion; grammatically independent | — | Oh! Wow! Alas! Indeed! |
1.2 Nouns — Types & Properties
| Type | Definition | Examples |
|---|
| Common | General names, not capitalized | dog, river, school |
| Proper | Specific names, always capitalized | Rover, Mississippi, Harvard |
| Abstract | Intangible ideas or concepts | love, justice, democracy |
| Concrete | Physically perceivable things | chair, thunder, bread |
| Collective | Groups treated as a unit | team, flock, jury, committee |
| Count | Can be counted individually | apple(s), idea(s) |
| Non-count (Mass) | Cannot be individually counted | water, air, information, advice |
| Compound | Made of two or more words | toothbrush, ice cream, mother-in-law |
| Gerund | Verb form functioning as a noun (-ing) | Swimming is healthy. |
1.3 Pronouns — Types & Cases
| Type | Examples |
|---|
| Personal (Subjective) | I, you, he, she, it, we, they |
| Personal (Objective) | me, you, him, her, it, us, them |
| Personal (Possessive) | my/mine, your/yours, his, her/hers, its, our/ours, their/theirs |
| Reflexive / Intensive | myself, yourself, himself, themselves |
| Demonstrative | this, that, these, those |
| Interrogative | who, whom, whose, which, what |
| Relative | who, whom, whose, which, that |
| Indefinite | anyone, each, few, many, none, several, somebody |
| Reciprocal | each other, one another |
1.4 Verbs — Types & Properties
| Property | Types / Description |
|---|
| Action vs. Linking | Action: run, write, think — Linking: be, seem, appear, become, feel, look, taste, smell, sound |
| Transitive vs. Intransitive | Transitive: takes a direct object — Intransitive: does not — She kicked the ball vs. She laughed. |
| Auxiliary (Helping) | be, am, is, are, was, were, been; have, has, had; do, does, did |
| Modal Auxiliaries | can, could, may, might, must, shall, should, will, would, ought to |
| Regular Verbs | Add -ed for past tense: walk → walked, talk → talked |
| Irregular Verbs (common) | be→was/were, go→went, see→saw, take→took, write→wrote, bring→brought, think→thought, eat→ate, give→gave, come→came |
| Verb Phrases | Auxiliary + main verb: has been running, will have completed |
1.5 Adjective & Adverb Degrees of Comparison
| Degree | Adjective (short) | Adjective (long) | Adverb |
|---|
| Positive | fast | beautiful | quickly |
| Comparative | faster | more beautiful | more quickly |
| Superlative | fastest | most beautiful | most quickly |
Irregular comparatives: good → better → best | bad → worse → worst | little → less → least | many/much → more → most | far → farther/further → farthest/furthest
1.6 Conjunctions — Types
| Type | Examples | Use |
|---|
| Coordinating (FANBOYS) | For, And, Nor, But, Or, Yet, So | Join grammatically equal elements |
| Subordinating | although, because, since, unless, while, whereas, after, before, if, when, though | Introduce dependent clauses |
| Correlative | both…and, either…or, neither…nor, not only…but also, whether…or | Used in pairs to connect equal elements |
| Conjunctive Adverb | however, therefore, moreover, furthermore, consequently, nevertheless, nonetheless | Transition between independent clauses (requires semicolon before) |
1.7 Verb Tenses — The Complete Grid
| Tense | Simple | Progressive | Perfect | Perfect Progressive |
|---|
| Present | I walk | I am walking | I have walked | I have been walking |
| Past | I walked | I was walking | I had walked | I had been walking |
| Future | I will walk | I will be walking | I will have walked | I will have been walking |