Jawaban:

"Part of speech" refers to the grammatical categories that classify words based on their function and meaning within a sentence. There are eight parts of speech in English: noun, pronoun, verb, adjective, adverb, preposition, conjunction, and interjection.

- Nouns are words that refer to people, places, things, or ideas.

- Pronouns are words that replace nouns in a sentence.

- Verbs are words that express action or state of being.

- Adjectives are words that describe or modify nouns.

- Adverbs are words that describe or modify verbs, adjectives, or other adverbs.

- Prepositions are words that show the relationship between a noun or pronoun and other words in a sentence.

- Conjunctions are words that join words, phrases, or clauses together.

- Interjections are words or phrases used to express strong emotion.

On the other hand, "tenses" refer to the form of the verb that indicates the time of the action or event. There are three main tenses in English: present, past, and future. Each of these tenses can be further divided into four aspects: simple, progressive (continuous), perfect, and perfect progressive (continuous). These aspects show whether the action is completed or ongoing.

- The present tense is used to describe actions that are happening now or regularly.

- The past tense is used to describe actions that have already happened.

- The future tense is used to describe actions that will happen in the future.

The simple aspect describes a completed action, the progressive (continuous) aspect describes an ongoing action, the perfect aspect describes a completed action with a continuing effect, and the perfect progressive (continuous) aspect describes an ongoing action with a continuing effect.

Overall, understanding the parts of speech and tenses is crucial for constructing proper sentences and communicating effectively in English.