的
Meaning
- of; ~'s (possessive particle)
- (used after an attribute when it modifies a noun)
- (used at the end of a declarative sentence for emphasis)
How it's used
Links a description to the noun it describes, in that order: 我的书 (my book), 红色的花 (red flower), 昨天买的书 (the book I bought yesterday). Whatever comes before 的 modifies whatever comes after — including whole clauses, which English puts after the noun.
Example sentence
我的头疼。
I have a headache.