的 is often used in descriptions of people/things/situations Placing it behind a pronoun: 我的 你的, 她的, 他的, 它的 = my/mine, your/yours, her/hers, his, its (e.g. 那是我的书 – that is my book) (e.g. 那本书是我的 – that book is mine) Placing it after an adjective: (e.g. 她是个很善良的人 – she is a kind person) There is also the word 地 used to transform adjectives to adverbs (pronounced as "dì" when you mean "floor" and pronounced as "dè" when you mean "___ly", an adverb) (e.g. 他慢慢地走过来 – He slowly walked over) (e.g. 她很快地告诉我 – she quickly told me) Hope this helps! :)

There is the 是。。的 structure. For example: 我是新来的 - I am new here / I am a new comer. 那是我前几天买来的。 It is a recent purchase of mine. 我是走路来的。 - I walked here.

well,most of the time,we use 的behind adj.,and we use 地 behind verb.They have no meanings,just like link verb.