491
[quote=@RomanAria]
490 Only three? and no conjugations? Okay that made me really irrationally happy. I'm going to take greek as soon as I get done with high school.
[/quote]
Only bad thing is that you do not have the regularity of the conjugations (especially like the 1st, where literally all you need to do is remember that its a 1st and you can write out the Principal Parts without a problem.

Edit: Also, there are [b]six[/b] principal parts and three different voices (active, middle, and passive).