What will the effect be on the twins if they are separated?怎么分析结构 为什么要用be

问题描述:

What will the effect be on the twins if they are separated?怎么分析结构 为什么要用be

因为前面有 will
will后面都跟着base form

will后面加动词原形,be动词原形即为be.
此句为疑问句所以will提前,若还原疑问句为陈述句即the effect will be...on the twins if...另外on the twins在此移后了,按中文译即为the effect on the twins will be...