否定转移的有关问题（I dont think we would have...)

I don’t think we would have randomly invited him over but we appreciate it and the gifts.

【请问】这句话被否定前移了，假如被还原，否定词not在哪儿？假如不考虑配合but后面部分的语义，but之前可以有几种理解方法。是否四种？

Lenslay‘s husband was totally astonished by the unexpected visit. I dont think we would have randomly invited him over but we appreciate it and the gifts. he said.

引号内的句子确实是转移否定句。假如把not还原到从句，则只有一个结果，即：

We wouldnt have randomly invited him over but we appreciate it and the gifts.

这是对过去所做的推断：大家是不会随邀请他来做客的。实质大家也没邀请他，他不请自来。所以这不是虚拟语气，而是对过去状况所做的推断。