[silversoraryuu]

i can teach u some japanese grammer rulez, it helps more than just knowing the word. i'll start wit verb rulz

making sumthing present and positive u add /masu/ on to it

Ex: wakarimasu
i understand

making sumthing past and positive u add /masita/ on to it

Ex: ikimasita
i went

making sumthing present and negetive u add /masen/ on to it

Ex: wakarimasen
i don't understand

making sunthing past and negative u add /masen desita/ on to it

Ex: ikimasen desita
i didn't go

NOTE: this only works with verb and makes no sense if it's use with words that aren't verbs