It noun: a person, place, thing, or idea
It adjective: describing word that modifies a noun
It present simple: verb form used to describe actions that regularly occur
It past simple: verb form used to describe actions that happened in the past
It present continuous: verb form used to describe actions happening now
It a/an: indefinite articles used before singular nouns
It a/the: articles used before nouns to show specificity
It comparative/superlative: forms of adjectives used to compare two or more things
It one/ones: demonstrative pronouns used to replace specific nouns
It did/do: auxiliary verbs used to form questions and negatives in past and present simple tenses