Firemen had been fighting the forest fire for nearly three weeks before they couldget it under control.请问get it under control 是词组还是什么,这是怎样搭配在一起的

问题描述:

Firemen had been fighting the forest fire for nearly three weeks before they could
get it under control.请问get it under control 是词组还是什么,这是怎样搭配在一起的

get 是个使役动词 +it宾语 + under control介词短语作宾补.“使大火得以控制住”