Can we use "Not only, but too" instead of "Not only, but also,?
I am wondering about the use of "Not only, but too" instead of "Not only, but also.? For example:
The candidates campaigned not only in Perth but in Darwin too.
and is it formal to use it?
Idiomatically:
The candidates campaigned not only in Perth but also in Darwin.
The candidates campaigned not only in Perth but in Darwin, too.
Note the position of the adverbs.