kaku, kiku, hanasu

Understanding dictionary forms
3 types of verbs
Making stems from dictionary forms

Forms of verbs

The Japanese verbs have two main forms: the short form and the long form.

The short form is primarily used for making statements and is commonly employed when talking to people with whom you have a close relationship, such as friends and family. This form is informal and conveys a sense of familiarity and intimacy. In addition to being used at the end of sentences, the short form also serves as a qualifier for nouns. This means that it can function within sentences to modify nouns, providing additional information or context.

The long form is a formal way to express something in Japanese. It is appropriate to use when asking or explaining something to people, or when speaking in formal occasions. The long form is always used at the end of sentences, providing a level of politeness and respect that is suitable for conversations with strangers, superiors, or in professional settings. This formality helps to maintain proper etiquette and conveys a respectful tone in your communication.

We will begin by learning verbs in the affirmative-short form, which is the form found in dictionaries and serves as the fundamental base for converting verbs into other forms. You’ll start by learning the affirmative-short form (also known as the dictionary form), and then you will proceed to learn the long form of verbs. The table below shows the conjugation of the verb “kaku” (to write). You don’t need to memorize it now, as you will learn each conjugation step by step.

Short formLong form
AffirmativeKaku (dictionary)Kakimasu 
NegativeKakanaiKakimasenKakanaidesu
PastKaitaKakimashita
Past-negativeKakanakattaKakimasendeshitaKakanakattadesu
ConnectiveKaite
Connective-negKakanaide
Ability, possibilityKakeruKakemasu
CausativeKakaseruKakasemasu
PassiveKakareruKakaremasu
AssumptionKakeba
VolitionalKakouKakimashou

Stems of verbs

As you can see, most of the forms start with “KAK,” which is the stem of the verb. In Japanese, verb conjugation involves modifying the stem by adding various functional parts to it. These functional parts include suffixes and endings that change the verb’s tense, mood, and politeness level.

KAK (stem)
KAK u (aff-short)
KAK imasu (aff-long)
KAK imashita (past-long)
KAK ita (past-short)
KAK ite (connective)
KAK eru (ability-short)
…..

Affirmative-Short form (Dictionary form)

In this lesson, we’ll learn the affirmative-short form (dictionary form), which is indicated in orange in the table below. This form is the starting point of verb conjugation, as it changes into many other forms. The dictionary form is the base form found in dictionaries. All Japanese verbs in their dictionary form end with an “u” sound.

Short formLong form
AffirmativeKaku (dictionary form)Kakimasu 
NegativeKakanaiKakimasenKakanaidesu
PastKaitaKakimashita
Past-negativeKakanakattaKakimasendeshitaKakanakattadesu

Classification of verbs

Affirmative-short forms (dictionary forms) are divided into three types, each with its own conjugation patterns. While the differences in conjugation are not substantial, it is important to recognize that these distinctions exist. In this section, you will be introduced to the concept that there are three different types of dictionary forms.

u-verbExamples like “kaku,” “iku,” “nomu,” and “toru” end with u-sounds.
iru, eru-verbExamples like “miru,” “taberu,” and “kakeru” end with either “iru” or “eru”.
irregular-verbSuru and kuru (only 2 verbs)

Finding the stems of each verb

Here is how to identify the stems of verbs. In Japanese education within Japan, the teaching traditionally employs Hiragana, which lacks distinct consonant letters, potentially causing confusion. To address this, we will adopt the Roman alphabet for clarity and consistency in learning.

U-verb

To derive stems from u-verbs, you simply remove the “u” sound from the dictionary form. These stems themselves do not inherently carry functional meanings; instead, functional meanings are imparted through the addition of suffixes.

Kaku >>> Kak
Iku >>> Ik
Nomu >>> Nom
Toru >>> Tor
Kau >>> Kawu >>> Kaw

IRUERU-verb

To derive stems from RU-verbs, remove “RU” from the dictionary form. It’s important to note that the stems of RU-verbs typically end with either an “i” sound or an “e” sound.

Miru >>> Mi
Taberu >>> Tabe
Kakeru >>> Kake

Irregular verb

Stems are irregular, but typically “S” for “Suru” and “K” for “Kuru.”

Words

WordMeaning
kaubuy
taberueat
torutake, grab
kakuwrite
ikugo
nomudrink
shimeruclose
mirusee, watch, look
akeruopen

Exercise

Questions

Exercise 1

Group the verbs into 3 types. 
undousuru, tobu, homeru, daku, benkyousuru, komu, hajimeru, owaru, ireru, dasu, oku, nameru, utsuru, kuru, akeru, huru, suru

Exercise 2

Make the verbs into stems. 
noru, matsu, saku, nameru, sawaru, ireru, dasu, akeru, shimeru

Answer

Answer 1
U-verbIRUERU-verbIrregular
tobu, daku, komu, owaru, dasu, oku, utsuru, huruhomeru, hajimeru, ireru, nameru, akeruundousuru, benkyousuru, kuru, suru
Answer 2

Noru >>> Nor  
Matsu >>> Mats    
Saku >>> Sak
Nameru >>> Name   
Sawaru >>> Sawar     
Ireru >>> Ire    
Dasu >>> Das
Akeru >>> Ake
Shimeru >>> Shime