I usually use "dived" myself, but I am NOT an expert on grammar. However, the "Grammarist dot com has this:
"
Dived is the traditional past tense and past participle of the verb dive. But the newer dove, which probably came about by analogy with similar words like drove and wove, has been in the language approximately two centuries and is now standard in American and Canadian English. Outside North America, where dived still prevails by a large margin, some might consider dove wrong."
Just consider "dove" (I say that as "duv" - the bird...
) as another one of our "yankee-isms" left over from the Revolution, and another mangling of the King's Language, even thought there's a Queen on the throne at this time...
