(SM) Good thinking. You can't verb anything because verb is not a verb except when it is. I have now fulfilmentized my role as a member of the grammar and style police (fel aelod yr heddlu gramadeg ac arddull in Welsh BTW FWIW).
Yes, and the same for 'fish' and 'wish' too. One of the great benefits of having a highly consistent language like English is that these rules are 100% reliable.