Lori Levin writes:
What is going on with "will have had gone"? It gets 122,000,000 hits in Google. I thought there could only be one auxiliary "have" per clause. Did the English auxiliary verb system change while I wasn't looking?
Some of my students say "will have had gone" sounds completely normal to them, and some won't accept it at all.
Some of the examples on the web:
I'm hoping someone will have had gone through a similar situation and will have some good words of advice for you.
A very large percentage of my viewers reading this will have had gone through an experience where they had to go through sending in mail in rebates to get a substantial discount.
If not for your witty remarks i will have had gone insane
These wealthy men will have had gone to school and have a steady job.
Here's one with a bit more of the context. This is an answer to the question "Can I get my tongue pierced while pregnant?":
I would definately wait untill afterwards. The only reason is that if you were to have an C-section either emergency or non; they will make you take out any peircings. You will have had gone through the swelling period again for nothing. Trust me, btdt and was a little mad. Got my tongue peirced at 7 months and had to take it out after I could start eating normally again. Sigh…it was fun while it lasted LOL
If not for the large number of hits [note: not really], and our previous discussions of similar things, I might have had thought that these were mistakes. Thus "Wouldn't of have", 2/21/2009; "Couldan't, shouldan't, wouldan't", 7/31/2004. In the 2004 post, Eric Bakovic suggested a number of hypotheses, including (crucially) this one:
Some speakers have reanalyzed modal + reduced HAVE as a single finite auxiliary/modal.
I suspect that people who are happy with "will have had gone" have the reduced form of have (often written "of") in that construction. But there are several obvious questions about the grammar of the rest of the string, which I leave open for discussion in the comments.
For example: if will_of, would_of etc. are finite forms, how come they're followed by had? This might be like "might could", but examples like this are rare:
Everybody is saying now what they would have could done to help her.