B. The placement of the object and modal particle le 了 in the sentence
  1. If the verb takes an object which refers to a place, the object is inserted into the compound complement. In such a sentence, if the action has already taken place, the modal particle le 了 is used to indicate that it is an accomplished fact. le 了 is placed at the end of the sentence.



    1. Lǐ jiā bān huí  Běijīng qu le.
      李家搬回北京去了。
      The Li family has moved back to Beijing.


    2. Liǎng diǎnzhōng yí dào, xuéshēng-men jiù dōu pǎo jìn jiàoshì lái le.
      两点钟一到，学生们就都跑进教室来了。
      As soon as it strikes two o 'clock, the students all ran into the classroom.

  2. If the object refers to something other than a place and it isa generic or indefinite object, it is usually placed after the compound directional complement. The aspect particle –le 了 and the modal particle le 了 are not commonly used in this kind of sentences.



    1. Tā náchūlaièrshí kuài qián.
      他拿出来二十块钱。
      He took out $20 dollars.


    2. Tāmen bānjìnquyí gè dà xiāngzi.
      他们搬进去一个大箱子。
      They moved a big crate inside.

  3. If the object refers to something other than a place and the object has been previously mentioned or is something both the speaker and the listener know, thebǎ把construction is most commonly used to displace the object to the pre-verbal position and comment on what has happened to the object. If the action is an accomplished fact, the modal particle le 了 should be used and placed at the end of the sentence.



    1. Tā bǎnèièrshí kuài qiánnáchūlaile.
      他把那二十块钱拿出来了。
      He took out the $20 dollars.


    2. Tāmen bǎnèi gèdà xiāngzibānjìnqule.
      他们把那个大箱子搬进去了。
      They moved the big crate inside.