suppose
verb (used with object)
to assume (something) for the sake of argument, as part of a proposition or theory, a problem set to be solved as an exercise, etc..
Used to describe an action that will be fully completed or achieved by a specific point in the future.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
My two dear friends will have supposed, with plenty of reason, that I never got the kind letter some weeks ago.
From Life and Letters of Robert Browning by Robert Browning