My workbook on the subjunctive has the following two phrases:
Dudo que yo pueda ir.
and....
Dudo poder ir.
It goes on to say that, although the first is correct (it says that with verbs of doubt and emotion, even when the subject of the verb in both the main clause and the subordinate clause are the same, they still use "que" plus the subjunctive), some speakers, for reasons of style and form, prefer the second form with the infinitive.
So, for my native speaking friends - what is your choice?
