I assume this is a correct sentence. I don't think "*I can see this be useful" works, though. Why is that? I thought verbs of perception worked with both the infinitive and the continuous (-ing form): “I see him play” / “I see him playing”.
That's a different meaning of see. When see means visual perception, either mood can be used:
- “I see him play”: with the infinitive, I see the action as a whole.
- “I see him playing”: with the present participle, I see the action in progress.
But when see means “imagine” or “anticipate”, as in your first example, it's always constructed with a participle, without any implication that the action is imagined to be in progress.
I can see this being useful.
I can't see her accepting the job in the present circumstances. (Cambridge English Dictionary)
I can’t see him earning any more anywhere else. (Oxford Dictionary of British & World English)
Check out the explanation on the Cambridge Dictionaries website: http://dictionary.cambridge.org/grammar/british-grammar/hear-see-etc-object-infinitive-or-ing