介词+代词（prep.+ pron.）
介词+
动名词（prep.+ gerund）
介词+
数词（prep.+ num.）
Everything dividesinto two.
介词+
介词短语（prep.+ prep. ph.）
The heat is from under the ground.
介词+形容词（prep.+ adj.）
Her studnets spoke of her as kindly and warm-hearted.
介词+副词（prep.+ adv.）
He has just returnedfrom abroad.
介词+
动词不定式（prep.+ inf.）
They had no other choicebut to give up the plan.
介词+连接代词/连接副词+动词不定式
（prep.+ conj. pron. / conj. adv. + inf.）
The professor gave a lesson on how to improve soil.
介词+
从句（prep.+ clause）
There is no doubt as to whether the proposal is practicable.
介词+
分词（prep.+ participle）
The problem was takenas settled