Select a word with the keyboard suggestion box active.  Tap shift and it will suggest title case.  Hold down shift and it will capitalize the entire word.

via: https://imgur.com/a/Bi4nE

![https://i.imgur.com/oZRqvkD.png][1]

![enter image description here][2]


  [1]: http://i.stack.imgur.com/OpwYI.png
  [2]: http://i.stack.imgur.com/cRH3b.png