The document provides information about parts of speech including adverbs of frequency, expressions of time, and verb conjugation in the third person singular. Adverbs of frequency indicate how often something occurs, such as always, often, usually, sometimes, never. Expressions of time generally go at the end of a sentence and include daily, weekly, monthly time expressions as well as times of day. Verbs in the third person singular take -s or -es in the affirmative form, such as "he walks" and do not take -s or -es in the negative form, such as "he does not walk."