Is "too, once" or "once, too" correct?
Brilliant sentence:
.1. Once, you did it to me too.
means you used to, but not any longer.
.2. You once did it to me too.
means on one occasion, I remember you did that to me as well; or
you used to include me.
.3. You did it once to me, too.
means on one occasion you did that to me as well.
*4. You did it to me once, too. X
This is infelicitous. There is a partial verbal ambiguity from the juxtaposition of Once with too/two. I.e. this is a 'garden path' phrase where the two/too homonym is distracting.
.5. You did it to me too, once.
Like 2 this means either once upon a time you did this to me; or on one occasion you even/ also did this to me.
To include both ideas choose two or five. For precision, choose one or three.