The phrase "able to think that" is correct and usable in written English.
It can be used when discussing someone's capacity or ability to hold a particular thought or belief.
Example: "She is able to think that her efforts will lead to success, despite the challenges ahead."
Alternatives: "capable of believing that" or "able to consider that".
By the time he reaches the point of being able to think "That's my girlfriend" about Maya, she has become not only a love object but also one of scientific fascination.
EDB: When you think about the process of the Christianization of Europe, many of the formerly Pagan people were easily able to accept Christianity because there was another guy dead in a tree and they were used to being able to think that way..
The good thing about Charlottesville is that I was able to think that I could place the people in "The Known World" in that area.
You think 'Ooh, wouldn't it be great to do that!' and I'm now in the fortunate position of being able to think that and make it happen".
In a perfect world, I would be able to think that we don't believe rape victims because we just can't fathom rape as a thing that an otherwise normal-seeming person would ever do.
Somehow though she is able to think that "torture is not like us.
But maybe if we paused, for a moment, and dialed down the discursive thermostat (the one thing we may be able to control) if only for a moment, we might for that moment become able to hear ourselves think, and we might become able to think thoughts that could start to solve our problems, and thereby – conceivably — make events like this less likely in the future.
If you are able to think of that much based off of one little moment, then you are way over thinking it.
"We've barely been able to think about that".
In her fright and confusion, she was not able to think what that was called.
They'll never be able to think like that... the daily absence in their lives".
