英语语法Never had a dog set fire to a bed with cig

Question

英语语法Never had a dog set fire to a bed with cigNever had a dog set fire to a bed with cigarette.
这里had a dog set fire是什么结构，have sb done？还是啥…

Answer 1

这个句子是否定词never 开头的倒装句，正常语序是 the dog had never set fire to a bed with cigarette.
句中 set fire to 固定短语 ，放火的意思，had set 是用的过去完成时，作谓语。

Answer 2

这是个never的强调句，把never和谓语动词提前。