respond – v. to say or write something as an answer to a statement, question or request

conversation – n. an informal talk involving two people or a small group of people : the act of talking in an informal way

positive – adj. showing or expressing support, approval, or agreement

negative – adj. expressing denial or refusal

comma – n. a punctuation mark used to separate words or groups of words in a sentence

match – v. to be equal to

antique – n. art, furniture or jewelry that was made at an earlier time and is often valuable

modal / modal auxiliary – n. a verb that is usually used with another verb to express ideas such as possibility, necessity, and permission