Positive: ending with "da" or "i". Negative:ending with "dewa nai" or "ku nai".
Positive:ending with "datta" or "katta". Negative: ending with "dewa nakkatta" or "ku nakkatta".
Kore(This one) Sore(That one) Are(That one over there) Dore(Which one) Koko(Here) Soko(There) Asoko(Over there) Doko(Where) Kotchi(This way) Sotchi(That way) Atchi(Over that way) Dotchi(Which way)
Dare(Who), Dochi (which), Doko(where), Ikura(how much), Ikutu(how many) Itu(when), Nani(what), Nan nin(how many people), Nan gai(what floor), Nnan ji(what time), Nan nichi (what day), Nan gatsu(what month) Nan nen (what year).
Watakushi(I) - Watakushi-tachi(we) Anata(you) - Anata-tachi(you people) Kare(he) - Kare-tachi(they-male) Kanojo(she) - Kanojo-tachi(they-female)
Kou(like this) Sou(like that) Aayu(like that over there) Dou(like how.
ei.:"Eigo no hon" (A book in English) [Eigo= English, no=in, hon=book] (de, ni, e, kara, no naka, ni, wa, yori, to, ushiro, shita ni, ueno hou ni, ueno hou e, etc)
Kore wa hon desu. (This is a book) Kore wa hon desu-ka?(Is this a book?)
Naze(why) Doo(how) Donna(like what).
Interrogative can be used as Idenfinites meaning any, ever, some,
if you add "demo" or "ka" after it.:
ei.:Dare demo(anyone)
Dare ka(someone)
Doko demo(anywhere)
Doko ka(somewhere)
Tama ni (from time to time) Tokidoki(some times) Nankai mo/ Nan domo (many times) Yoku (often) Itsu mo(always) Itsu demo(any time)
Juu(Kotoshi-juu) chuu (gozen-chuu) kan (Yonen-kan)