/jp/ - Otaku Culture

Best site to look up verb conjugations?

I often don't recognize conjugated words (especially if they are written in kana only)
Is there a site where I can either check the conjugations of a word to check if it is what I think or maybe lists all conjugations that exist in one place?

Or do you think I should grind tae kim until I know everything perfectly to avoid this?
I mean I have to admit I forget a thing or two, but looking it up while reading seems the better choice compared to grinding the grammar down again.

Jisho has only basic stuff and some words have no entries.