21. Base 1: Base 1 can not be used by itself but becomes the plain form negative simply by adding -nai. (ex. hanasanai - I won't say anything.) If the verb ends in う (u) then the end for Base 1 becomes わ (wa). (ex. au (Base 1) -> awa)(Plain form is what people use when talking to a friend. It would not be proper to use in a business environment. We will go over the polite form in lesson 8.) Base 2: Base 2 is, in most cases, a noun when used by itself but is primarily used with the polite form of the verb. Base 3: Base 3 is the main form (the one that would be found in the dictionary) and is also the plain form present/future tense. Base 4: Base 4 is most often used as "if verb" by adding -ba. (ex. hanaseba - If he'd just say something.) It can also be used by itself as a command form but it is extremely rude and I recommend not using it at all. Base 5: Base 5 is used by itself as the "let's" form. (ex. hanasou - Let's talk.) We will get into other ways it's used in later lessons. Base "te": Base "te" can be used by itself as a plain form command. It is not rude but should only be used with close friends and children. By adding kudasai it becomes the polite form command. Base "te" can also be used in other ways that we will get into in later lessons. 

22. Base "ta": Base "ta" is merely Base "te" with an "a" sound on the end instead of an "e" sound. It is mainly used by itself as the plain form past tense. (ex. hanashita - I talked.) We will get into other ways it's used in later lessons. Notice: There is one thing that you'll need to learn in order to conjugate the "te" and "ta" forms correctly. Basically, for all Godan verbs ending in う (u), つ (tsu), or る (ru); the う (u), つ (tsu), or る (ru) becomes って (tte) in the "te" form and った (tta) in the "ta" form. (ex. katsu (to win) -> katte (Win!), katta (We won!)) For all Godan verbs ending in ぶ (bu), む (mu), or ぬ (nu); the ぶ (bu), む (mu), or ぬ (nu) becomes んで (nde) in the "te" form and んだ (nda) in the "ta" form. (ex. yomu (to read -> yonde (Read it.), yonda (I read it.)) For all Godan verbs ending in く (ku), the く (ku) becomes いて (ite) in the "te" form and いた (ita) in the "ta" form. (ex. aruku (to walk) -> aruite (Walk!), aruita (I walked here.)) The only exception to this rule is for the verb iku (to go) which becomes いって, いった (itte/itta). For all Godan verbs ending in ぐ (gu), the ぐ (gu) becomes いで (ide) in the "te" form and いだ (ida) in the "ta" form. (ex. oyogu (to swim) -> oyoide (Swim!), oyoida (I swam.)) For all Godan verbs ending in す (su), the す (su) becomes して (shite) in the "te" form and した (shita) in the "ta" form. (ex. hanasu (to talk) -> hanashite (Say something!), hanashita (I talked (to him).)) Here are some Godan verbs. Try conjugating them on a piece of paper using what you have just learned. Click here for the answers.

26. Base 1 and Base 2: As you can see, Base 1 and 2 are the same. Just like with the Godan verbs, a negative can be made by adding -nai (ex. tabenai - I will not eat.) and this base, or root form, is also used for the formal form of the verb. Base 3: Base 3 is the same as with Godan verbs. Base 4: Base 4, however, can not be used by itself like with Godan verbs. It is only used for "if verb" by adding -ba. (ex. tabereba - If I eat it...) It is not the low command form for Ichidan verbs. The low command form for Ichidan verbs is Base 1 + ろ (ro). Base 5: Base 5 is the same as with Godan verbs. Base "te" and Base "ta": The Base "te" and "ta" forms for Ichidan verbs are a lot easier than with Godan verbs. Simply take off the "ru" and add a "te" for Base "te" and a "ta" for Base "ta". These have the same functions as with Godan verbs. Here are some Ichidan verbs. Try conjugating them on a piece of paper using what you have just learned. Click here for the answers.