1, adverbs modify verbs and adjectives and can be placed before or after verbs and adjectives. I sincerely hope you can understand me. I sincerely hope you can understand me. Sincerity is an adverb here, which modifies hope and expresses degree. Another example: the flowers are beautiful. This flower is really beautiful. The adverb "very" modifies "beautiful".

2. Add adjectives after verbs. Example: Be a good person, be confused and feel good. Verbs are followed by nouns and verb-object structures. Example: open the door and close the window. Sometimes a noun can be followed by a noun, and the first noun acts as an attribute. Like banana trees

3. There can be nothing behind a noun, but the front can be modified or restricted by articles, adjectives, pronouns, numerals and adverbs, and can also be dominated by verbs, prepositions and conjunctions. Sometimes a noun can be followed by a noun, such as a school bus, but then the former noun acts as an adjective. So strictly speaking, there is no word to follow after a noun.

4. Pronouns can be followed by nouns, and the part of speech that can be modified/limited in front is missing articles.

Words and numerals can be followed by nouns and pronouns. There are fewer parts of speech that can be modified/limited in front than nouns and articles. When adjectives and adjectives, or adjectives and numerals are used at the same time, there is a parallel relationship between them rather than a modification/limitation relationship.

6. Prepositions can usually be followed by nouns and pronouns, and sometimes adjectives, numerals and adverbs. The only parts of speech that can be modified/limited are adverbs and prepositions. Strictly speaking, adverbs modify prepositional phrases, not prepositions themselves.

Extended data:

Greek linguists divided words into eight parts of speech:

Noun: a word that changes according to the case, indicating a practical or abstract concept;

Verb: a word that is not inflected according to case, but according to tense, voice and number of subjects;

Gerund: a word with both noun and verb properties;

Articles: including today's definite articles and basic guiding words (word guiding clauses);

Pronouns: words that replace nouns or people; Preposition: a word with grammatical function in a sentence;

Adverb: words that modify verbs, adjectives, clauses, sentences or other adverbs without inflectional changes;

Conjunction: a word that connects two sentences or meanings and expresses a logical relationship.

Baidu Encyclopedia-Part of Speech