As of about six months ago, the state of the art in this field is that you would, for instance, go up to the following psychologist with fabulous hair, and you'd say, "Steve, you're an expert on the irregular verbs.
Há cerca de seis meses, o topo de gama neste campo seria dirigir-se, por exemplo, a um psicólogo com um cabelo fabuloso e dizer: "Steve, és perito em verbos.