Special case of the question tag.

[man of manners]

Hi!
We all know that, especially in Br.E, the auxiliary verb used in the main clause in almost always the one used in the tag.
The question is: When doesn't this occur?

Thanks in advance!

 

[Tdol]

You might find it in speech where the person has moved onto another verb in their thinking and forgotten the main one.

 

[man of manners]

Are there any specific or known special cases with statements?

[off-topic: The likes and thank buttons have disappeared. Is there anything wrong?]

 

[emsr2d2]

We think the editor is running some software updates. I'm sure the Thank and Like buttons, and the Member Info will be back soon.

 

[Tdol]

There is a software upgrade going on at the moment.