| Term | Definition |
| antecedent | the noun which the pronoun replaces or represents |
| adjective | used to modify (describe) a noun. |
| adverb | a word that is used to modify the meaning of a verb, adjective, sentence or even another adverb. |
| English articles | "a", "an", and "the" |
| definite article | "the" indicates a definite entity that both the reader and writer recognize. |
| indefinite articles | "a" and "an" |
| clause | any group of words that has a subject and a verb (or Predicate) |
| conditional sentence | a complex sentence that potentially expresses a hypothesis that is contrary to fact. |
| conjunction | a word that joins words, phrases, or clauses. |
| countable noun | a noun that can be preceded by a number indicating how many. |
| uncountable | noun that cannot be preceded by a number indicating how many (E.g. mud, water, rice, love) |
| sentence fragment | a group of words that does not constitute a complete sentence. |
| gerund | a verb with an -ing ending that functions as a noun. |
| Infinitive | a basic verb form that is not marked for tense or person. It is usually preceded by the word "to." |
| intransitive verb | a verb that is not followed by an object. |
| transitive verb | a verb that required an object – it happens to something. |
| modal auxiliaries | include a class of verbs that indicate necessity, ability, possibility, permission, or obligation |
| examples of modal auxiliaries | can, could, would, should, ought, might, may, must, have to, had to. |
| preposition | a word indicating a relationship between two things which may be spatial, temporal, grammatical or metaphorical. |
| examples of prepositions | about, above, across, after, against, along, amid, among, around, at, before, behind, below, beneath, beside, between, beyond, by, down, for, from, in, into, like, near, of, off, on, out, over, past, since, through, to, towards, under, unto, up, upon, with, within, etc. |
| pronoun | a form that takes the place of a noun or a noun phrase. |
| object pronouns | pronoun form used when the word receives the action of the sentence or a preposition: him, her, them, whom, you, it |
| subject pronouns | pronoun form used when the word is the subject of the sentence: he she they you it who |
| possessive pronoun | pronoun form used as an adjective to indicate ownership: his, her, their, its, your whose |
| run-on sentence | in written English occurs when two independent clauses are joined together with commas, inappropriate conjunctions, or no punctuation at all. |
| subject | the noun or noun phrase of the MAIN verb in the sentence. |
| verb | a word that shows action or state of being. |
| object of the preposition | the noun at the end of a prepositional phrase |