Yes this was a very good article but I have a headline question:

Lately I keep seeing “sunk” used as the simple past tense instead of “sank.” The past participle for example would be “had/have sunk” and the future perfect would be something like “I shall have sunk.”

I know that popular usage is often the arbiter of correct grammar but I really don’t want to read headlines like “The victim seen him coming.”

I only make mention because I’ve seen this particular and peculiar construct on several well-regarded internet media sites in past few days.