On my previous question (thus begins the chain) I wrote a comment saying "Illa est bona idea. Fortasse rogem cras." I used the subjunctive because I take "fortasse" to mean "maybe", which to me warrants the potential subjunctive.
Is my conclusion correct? What other adverbs of possibility or probability would warrant the subjunctive? Take the following for example.
- probabiliter (probably, per this suggestion)
- veri simile est (same source as above)
Happy to hear your thoughts, primarily regarding the comment I wrote, but also regarding the other words in the bullet-list above.
My conjecture, which I will share with you briefly, is that words leaning towards "possibly, perchance, perhaps, maybe" take the subjunctive, but words leaning towards "probably, almost certainly, most likely" lean towards the indicative. I could easily be wrong.