1. Adverbs: Adjective + 地 You can easily convert Chinese adjectives to adverbs with the particle 地 (de). 地 is very similar to the English suffix -ly. It is pronounced de when used as a particle and pronounced dì when used as a noun, meaning "earth/soil/ground/region".
2.【的地得】 地 vs. 的: Word Order 的,地,得 are the three most commonly used structural particles in modern Chinese. 的 (de), most often used to modify nouns; 地 (de), most often used with adverbial phrases. In Chinese adverbs always occur before the verb and adjective always comes before the noun or pronoun in the sentence.
3.【的地得】 地 vs.得: Word order 的,地,得 are distinguished in writing. 得 (de), most often used with complements, 地 (de), most often used with adverbial phrases. In Chinese, adverbs always appear before the verb, and adjective complements appear after the verb, following the particle 得.
4. 地 - 在,地 are used to describe an action in progress.
5. 很 + adj. + 地 很 can be added before an adjective. Sometimes 很 is translated as "very" but most often it is a fixed expressions without any actual meaning.
6. Reduplicated adj.+ 地 A monosyllabic adjective can be reduplicated. If the adjective has more than one character, then each character has to be repeated following itself, known as the "AABB" pattern. 地 becomes optional.
7. Reduplicated verb + 地 Not only adjectives can be reduplicated. Some Chinese verbs also can be used in this way.
8. 地 + Prepositional Phrase + verb Prepositional Phrase can be used between 地 and a verb.
9. 地 - Sequential/individual action To describe an action being performed sequentially or individually, 一 plus a measure word must be reduplicated. In this case, 地 becomes optional.
10. 地 - Four-Character Expressions Another type of adverbials is four-syllable "elaborate expressions". These adverbials are numerous. Some of them are used more often in literature and some are commonly used.
11. 地 - Onomatopoeia Chinese sound-symbolic words also appear in the adverbial position. These may be reduplicated or elaborated.
12. 地 - If an action keeps happening and won't stop, we say "不断/不停 地" in Chinese.
13. 地 - 地 can turn some verbs into adverbs.
14. 地 - 地 in the 被 sentences When used with 被 to express the passive voice in Chinese, 地 should be placed after 被 and its agents.