Neither before...nor after ...+ negative inversion

"Neither before the Declaration of Independence of Ukraine nor after the 1991 referendum in December did Washington regard aspirations of the Ukrainian people for self-determination." Is it OK with the negative inversion "..did Washington.." here?

Yes.

Would this structure be grammatically OK "It's not until the Declaration of........nor after the 1991 referendum did Washington...."? Or "it's not until ...."is always followed by "that"?

ostap77 said:

Would this structure be grammatically OK "It's not until the Declaration of........nor after the 1991 referendum did Washington...."? Or "it's not until ...."is always followed by "that"?

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If you start it that way, it would be "It was not until [after] the Declaration of ... that he ..."

ostap77 said:

Would this structure be grammatically OK "It's not until the Declaration of........nor after the 1991 referendum did Washington...."? Or "it's not until ...."is always followed by "that"?

Click to expand...

You can't start it that way. "It was not until the Declaration of Independence of Ukraine nor after the 1991 referendum in December did Washington regard aspirations of the Ukrainian people for self-determination" makes no sense.

Actually, I don't think the original makes real sense. What is supposed to be meant by Washington regarding the aspirations of the Ukrainian people?