The First Five Bases
Every language has things that are exceptions to the rule. For the most part, Japanese is very good at obeying its own rules. However, there are a few verbs that break the rules entirely - exception verbs. These verbs just don't fit in with the rest of the standard rules of the language and make it more difficult for everyone to learn it. Let's go over the three big ones and then we will provide you a list of the LIAR verbs.
Suru - To Do する
Suru in Base 1 = Shi し
Suru in Base 2 = Shi し
Suru in Base 3 = Suru する
Suru in Base 4 = Shiro しろ
Suru in Base 5 = Shiyou しよう
Suru in Base Te = Shite して
Suru in Base Ta = Shita した
Kuru - To Come くる
Kuru in Base 1 = Ko こ
Kuru in Base 2 = Ki き
Kuru in Base 3 = Kuru くる
Kuru in Base 4 = Koi こい
Kuru in Base 5 = Kiyou きよう
Kuru in Base Te = Kite きて
Kuru in Base Ta = Kita きた
Iku - To Go いく
Iku in Base 1 = Ika いか
Iku in Base 2 = Iki いき
Iku in Base 3 = Iku いく
Iku in Base 4 = Ike いけ
Iku in Base 5 = Ikou いこう
Iku in Base Te = Itte いって
Iku in Base Ta = Itta いった
Outside of these three there major exception verbs する, くる, and いく, there are verbs that are LIAR verbs that you kinda have to learn though trial and error. Basically, LIAR verbs are verbs that look like Ichidan verbs but actually conjugate like Godan Verbs. Yuck, right?!
Examples of this include:
Kiru - to cut
Shiru - to know
Iru - to need
Hairu - to enter
Kaeru - to return
Hashiru - to run
Kagiru - to limit
Keru - to kick
Shaberu - to talk
Teru - to shine
etc.
This list is not comprehensive, rather, it is meant to give you an idea of common verbs that initially look like Ichidan verbs but are actually Godan verbs. If you run into an verb that looks like an Ichidan and are questioning which one it is, you can double check by looking it up on jisho.org or on the app Imiwa.
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Daily Vocabulary
Suru is a peculiar verb. Peculiar and awesome. Suru is a very unique verb in the Japanese language because you can basically plug it in behind any noun and turn that noun into a verb. Awesome right! Check out some of these examples:
Study べんきょう
To Study べんきょう する
Marriage けっこん
To get Married けっこん する
Confirmation かくにん
To Confirm かくにん する