一、使役动词后省略to的情况
在let, make, have等使役动词后用作宾语补足语的不定式必须省略to。如：My mother wouldn’t let me go to the film. 我妈妈不会让我去看电影的。I don’t like milk, but mother made me drink it. 我不喜欢牛奶，可是母亲强迫我喝。I would have him wait for me at the gate of the park. 我要他在公园门口等我。注意： 1. 当使役动词用于被动语态时，要补上在主动语态中省略的to(主要是指make，let和have很少用于被动语态)。2. force, oblige等虽然也表示2. force, oblige“使”，但它们后用作宾语补足语的不定式必须带to。如：He forced me to go with them. 他迫使我同他们一起去。The police obliged him to leave. 警方强迫他离开。
