i don't know you tell me
Its incontrovertible to do 2 things at once.
The prosecution had incontrovertible evidence against the suspect that was impossible to defend against.
When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).
The theory of evolution is supported by incontrovertible evidence.