Niko forwarded me the most brilliant webpage for dealing with Modern Greek conjugations and declinations: a lexiscope for Modern Greek.
You may ask what is a lexiscope? It is literally a devise for examining words. So why would you want to examine words? Some languages, like Modern Greek, have a complex morpheme system of conjugations and declinations that give the non-native speaker, i.e. language learner, a massive headache.
So how does a lexiscope work? You type in a Greek noun, verb or adjective, and then it gives it back to you in all of its forms.
This is going to make getting my Greek homework done all the faster. Someone should make one of these for other languages.