The phrase "although it is probable" is correct and usable in written English.
You can use it to introduce a contrast or concession regarding the likelihood of a situation or outcome.
Example: "Although it is probable that the event will be successful, we should still prepare for potential challenges."
Alternatives: "even though it is likely" or "despite the likelihood".
Such a dramatic move seems unlikely in Afghanistan for the time being, although it is probable that large numbers of non-essential staff will be made to leave.
A few insects (e.g., some caterpillars and aquatic midge larvae) tolerate ice formation in body fluids, although it is probable that the cell contents do not freeze.
All great encyclopaedia makers have tried to be truthful and to present a balanced picture of civilization as they knew it, although it is probable that no encyclopaedia is totally unbiased.
It is sometimes claimed that they are descended from animals that travelled with the Spanish Armada, although it is probable that they arrived by more conventional means.
Arranged along the west curtain wall was an extra hall and a kitchen; it is not certain what these were used for, although it is probable that these were intended to provide for the household's retainers.
Other specifications of the ships were never decided upon, although it is probable that they would have resembled contemporary British ships, with two closely spaced funnels along with super-imposed turrets fore and aft.
Let's again be clear that we're not talking about Narcissistic Personality Disorder, although it's probable that some addicts do fall into that category.
No scratches or smaller pits were observed, and it is probable (although not certain) that these gouges are not the result of tooth-food or tooth-tooth contact.
Although it is not yet demonstrated, it is probable that this microRNA arises from the VE-statin/egfl7 pre-mRNA and depends on the same regulation mechanisms.
Thus, although the mutant gene is transcribed, it is probable that the resulting mRNA is less stable than the mRNA transcript of the wt gene.
Although not evident from the current study, it is probable that TB among young children might have been missed.
