Because bǎ 把 sentences are used to point out what has happened to the object as the result of an action, the verb always has to take an element to indicate specifically how the object is consequentially affected or how someone intends to affect it. Therefore, the resultative complement is often used in bǎ 把 sentences.

1. 
   Wǒ bǎ nǐ-de mén xiūhǎo le.
   我把你的门修好了。
   I fixed your door.
   
   The desired result of‘repairing ' is to make something work again --- to be as good as before. The stative verb hǎo 好 is used here to indicate the result of the action xiū 修 (to fix).
   
   
2. 
   Wǒ bǎ jīntiān de zuòyè zuòwán le.
   我把今天的作业做完了。
   I finished today 's homework.
   
   The desired result of doing homework is to finish it. Zuò 做 indicates the action of 'doing ' and wán 完 indicates completion. With the modal particle le 了 indicating accomplished fact, this sentence indicates that the subject (agent), wǒ 我, has brought “today 's homework” to the stage of completion as a result of doing it.