這是一個簡單句(simple sentence):
主詞she+及物動詞tried+受詞(不定詞片語)
to convince someone of something是這個不定詞片語的語法結構
someone = the police
something = her innocence
不定詞是由動詞所衍生的動狀詞(verbal),所以具有動詞的部分特性。convince是及物動詞,所以其不定詞可以再接上自己的受詞somone,並連上介系詞片語of xxx當其修飾語。
To Yee-kwan:-
She (tried to convince);
=S + V + O as complement;infinitive phrase as verbal;
the police
=indirect object
of her innocence
=prepositional phrase ,as direct object.;
= preposition is a word that is used to show that word's connection with another word, such as" of "in of her innocence;, and" by" in by her innocence.