HTC One M8 :: How To Type Long Text Messages In Landscape Format

I've recently got an HTC One M8, and when I try to write a long text message, thats long enough to not fit all on the one window (so it has to scroll), it scrolls so that the bottom line of text is just above the on-screen keyboard. But THEN when i type, the auto suggest words appear above the keyboard, and cover over what I'm typing so that I can't see it, which is really annoying and means every word I have to click back and forth between the editing screen and the other screen to get the view of what I just wrote back.

PS I just noticed it only happens in landscape orientation. I always write texts this way since the keys are bigger and my hands are large. In portrait orientation it works fine.

So now my question is, is is possible to write long texts in landscape format?