Complex sentences are sentences that contain one independent clause and at least one dependent clause. They help add more information to a sentence and make writing richer and more interesting.

Their is a possessive adjective. "There" can act as a pronoun, adverb, noun, or adjective, depending on the context.

These words - "another," "other," "others," "the other," and "the others" - are used in English to distinguish between items, people, or groups.

Subject pronouns are pronouns that take the place of the subject in a sentence. They perform the action in a sentence and answer the question “Who?” or “What?” before the verb.

Pronouns are words that take the place of nouns in a sentence. They help make sentences shorter, clearer, and less repetitive.