Japanese Imperative and Prohibitive Forms

Japanese direct commands are strong and used mainly by men, in military, traffic signs, or emotional speech. The Imperative (Meireikei): Group 1 U-verbs change final 'u' to 'e' (e.g., iku -> ike [go!]). Group 2 Ru-verbs drop ~ru and add ~ro or ~yo (e.g., taberu -> tabero [eat!]). Group 3: suru -> shiro, kuru -> koi. The Prohibitive (Kinshikei) is formed simply by adding the particle 'na' directly to the dictionary form of any verb (e.g., iku na [do not go!], taberu na [do not eat!]).