I am fairly familiar with the Eastern Desert, and I have a theory as to the most likely route.
Elizabeth Peters HE SHALL THUNDER IN THE SKY (2000)
This is one of the issues as to why we don't see each other.
The Sun (2016)
Sometimes choosing the nominative case sounds so formal as to be absurdly stilted.
Times, Sunday Times (2014)
The salary he was offered was so low as to be hilarious.
Times, Sunday Times (2015)
I was so close as to be almost among the singers.
Times, Sunday Times (2012)
No clues yet as to what - but under-18s aren't invited.
Times, Sunday Times (2008)
It is an idea repeated so often as to have become a cliche.
Times, Sunday Times (2007)
No one is ever in any doubt as to his ethnic origins.
Times, Sunday Times (2010)
All related terms of 'as to'
as for
You use as for and as to at the beginning of a sentence in order to introduce a slightly different subject that is still connected to the previous one.
as opposed to
You use as opposed to when you want to make it clear that you are talking about one particular thing and not something else.
be as good as to
would you please
it is as well to
You say it is as well to think or do something when you are advising someone to think in a particular way or to take a particular action.
to take something as read
If you take something as read , you accept it as true or right and therefore feel that it does not need to be discussed or proved .
to be as American as apple pie
to be typically American
true to one's word to be as good as one's word
If you are true to your word or as good as your word , you do what you say you will do.
to cut your teeth on something cut your teeth in/as
If you say that someone cut their teeth doing a particular thing, at a particular time, or in a particular place, you mean that that is how, when, or where they began their career and learned some of their skills .