Why the sentence "ありったけの夢をかき集め" omits the last る? I was practicing Japanese listening some anime lyrics. The question is about the first sentence of the music "We Are" (first opening) of the anime One Piece: "ありったけの夢をかき集め" I don't understand why they used the root of the verb かき集める omiting the last る. Anybody can explain me that?