Could understand completely why no one came here any more.
And my heart died a little inside me, though I did not completely understand why.
He did not completely understand what they were like though.
For some reason that he could not completely understand, he'd wanted to be off by himself.
We'll never completely understand how they think, but this point was clear enough.
Of course, I don't completely understand why an editor is really necessary.
So for all of its importance, we still don't completely understand water.
Mother knew that fact, although she did not completely understand it.
There were a lot of things going on that I didn't completely understand.
But in limited English, each side seemed to completely understand the other.