Whenever I see the verb "bias" being used in a sentence, it is always used as a verbal. Can it be used as a verb (example please!)? If it cannot, is there a special name for verbs that can only be used as verbals, and are there other cases of this scenario with different verbs? For example, bias can be used as "The boy was biased" or "The biased argument was quashed." I have never seen the verb as "I will bias you after I state my argument."
"Can it be used as a verb?" -- Sure, as a transitive verb even!
To bias someone means to influence them in favour of a particular choice.
We mustn't allow it to bias our teaching.
Synonyms: influence, colour, weight, prejudice
It's a technical use, but Electrical Engineers often say "we bias the gate of the transistor with a current of...'