We can only infer that, of course.
With classical autism, there is no "window," and we can only infer.
Unless you see him watching television, you can only infer that he's doing it.
From Thursday's actions, we can only infer that it has finally freed Chairman Bernanke to do the right thing.
Although we can precisely determine their molecular composition (CxHyOz), we can only infer their specific structure and functional groups.
Yet even the most advanced machines, using the most objective measurements, can only infer how well a cup of coffee is brewed — not how it actually tastes.
The jury can only infer that they are opposed to his execution from the fact that they are witnesses for the defense.
One can only infer that they felt that the newspaper accounts were not accurate in view of the reports they were getting from their own people.
We can only infer from this rapidity that it is not "difficult" for life of bacterial grade to evolve on planets with appropriate conditions.
Fluoroscopy can visualize this stage nicely, whereas endoscopy can only infer what is transpiring from movements of the base of tongue.
There are key confrontations in which we don't even get to hear what characters are saying, and can only infer it from their body language.
