 Other parts of speech occur as bare roots, without special suffixes.These are the prepositions "(al" "to"), conjunctions "(kaj" "and"), interjections "(ho" "oh"), numerals "(du" "two"), and pronouns "(mi" "I"—The final "-i" found on pronouns is not a suffix, but part of the root).There are also several grammatical "particles" that fit neatly into no category, and which must generally precede the words they modify, such as "ne" (not), "ankaŭ" (also), "nur" (only), "eĉ" (even).