An affix is a letter or group of letters added to a base word (or root) to change its meaning, grammatical function, or form. Affixes cannot stand alone as words they must be attached to a root to have meaning. There are two main types: a prefix, which is added to the beginning of a […]

An adjective clause (also called a relative clause) is a group of words that contains a subject and a verb and functions as an adjective meaning it describes or gives more information about a noun or pronoun in a sentence. Adjective clauses usually begin with a relative pronoun such as who, whom, whose, which, or […]

An auxiliary verb, also called a helping verb, is a verb that works alongside a main verb to express tense, mood, voice, or aspect. The most common ones are forms of “be,” “have,” and “do,” along with modals like “can,” “will,” and “must.” For example, in “she is running,” “is” shows ongoing action; in “they […]