Japanese verbs have conjugations.「生やす (はやす、hayasu)」is a verb and means “grow” or “will grow.” This word is usually used for “hair,” “root,” or “grass.” We will teach you the conjugation in this page. You can also learn example sentences using verb conjugations.
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When you do not know how to use the conjugation, please learn about it in our conversation lessons or our mail support. In our mail support, we check your Japanese every time. If you have an internet connection and a PC/smartphone, you can learn Japanese with us all over the world.
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Vocabulary Video
Before you learn the conjugations, please learn about the pronunciation of the verb in dictionary and polite forms.
Video: Coming soon
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Dictionary Form/ます Form
As you know, English tenses are roughly divided into present, future, and past tenses. However, it is said that Japanese tenses consist only of “Past Tense” and “Non-Past Tense.” Therefore, we used “Dictionary Form,” not “Present Tense” in this heading.
Japanese people use two types of language. One is “non-honorific language” and the other is “honorific language.” When we focus on these languages, “dictionary” and “plain” forms are in “non-honorific language.” “Polite form” is in honorific language.
English Meaning: grow, will grow
| Positive | Conjugation | Romaji Reading |
| Dictionary & Plain Form | 生やす | hayasu |
| ます & Polite Form | 生やします | hayashimasu |
「辞書形 (dictionary form)」is the original form. The technical term is for non-native Japanese speakers. Therefore, native Japanese usually do not know the word.「ます形 (ます form)」is the polite form of a dictionary form. The term is also for non-native Japanese speakers.
I’ll grow a beard.
あご髭を生やす。(Plain Form)
あご髭を生やします。(Polite Form)
English Meaning: do not grow, will not grow
| Negative | Conjugation | Romaji Reading |
| Plain Form | 生やさない | hayasanai |
| Polite Form | 生やしません | hayashimasen |
I won’t grow a beard.
あご髭を生やさない。(Plain Form)
あご髭を生やしません。(Polite Form)
Past Tense
English Meaning: grew
The plain form is in “た form”. “た form” is also a technical term for non-native Japanese speakers. Therefore, native Japanese usually do not know the word.
| Positive | Conjugation | Romaji Reading |
| た & Plain Form | 生やした | hayashita |
| Polite Form | 生やしました | hayashimashita |
I grew a mustache.
口髭を生やした。(Plain Form)
口髭を生やしました。(Polite Form)
English Meaning: did not grow
| Negative | Conjugation | Romaji Reading |
| Plain Form | 生やさなかった | hayasanakatta |
| Polite Form | 生やしませんでした | hayashimasen deshita |
I didn’t grow a mustache.
口髭を生やさなかった。(Plain Form)
口髭を生やしませんでした。(Polite Form)
て Form
English Meaning: N/A
We cannot know the exact meaning without knowing the sentence and situation.
| Conjugation | Romaji Reading | |
| て Form | 生やして | hayashite |
About the phrases「ている」and「ています」: Here
About the phrase「～てください。」: Here
Okano-san has a beard.
岡野さんは髭を生やしている。(Plain Form)
岡野さんは髭を生やしています。(Polite Form)
Volitional Form 1: Will, (Own) Intention, Determination
English Meaning: will grow
| Conjugation | Romaji Reading | |
| Plain Form | 生やそう | hayasō |
| Polite Form | N/A | N/A |
This phrase is used only in plain form. This is because we use it when we talk to ourselves or think in our minds. When we talk or think to ourselves, we usually do not use the polite form.
I’ll grow a beard.
髭を生やそう。(Plain Form)
Volitional Form 2: Solicitation, Intention, Invitation
English Meaning: let’s grow
| Conjugation | Romaji Reading | |
| Plain Form | 生やそう | hayasō |
| Polite Form | 生やしましょう | hayashimashō |
Let’s grow some grass here.
ここに草を生やそう。(Plain Form)
ここに草を生やしましょう。(Polite Form)
Potential
English Meaning: can grow/be able to grow
| Positive | Conjugation | Romaji Reading |
| Plain Form | 生やせる | hayaseru |
| Polite Form | 生やせます | hayasemasu |
We can grow (head) hair with this medicine.
この薬で髪を生やせる。(Plain Form)
この薬で髪を生やせます。(Polite Form)
English Meaning: cannot grow/not able to grow
| Negative | Conjugation | Romaji Reading |
| Plain Form | 生やせない | hayasenai |
| Polite Form | 生やせません | hayasemasen |
We can’t grow (head) hair with this medicine.
この薬で髪は生やせない。(Plain Form)
この薬で髪は生やせません。(Polite Form)
If you do not know why we used the postpositional particle「は」, not「を」in this sentence, please ask about in our lessons or mail support.
Imperative Form
English Meaning: grow! (order, command)
| Positive | Conjugation | Romaji Reading |
| Plain Form | 生やせ | hayase |
Grow/Have a beard!
髭を生やせ。(Plain Form)
“Imperative form” is used only in plain form and this phrase often becomes rude depending on the situation. Please show us your Japanese when you use it. We will check and teach suitable Japanese.
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Prohibition and Order
English Meaning: do not grow!
| Negative | Conjugation | Romaji Reading |
| Plain Form | 生やすな | hayasuna |
Don’t grow/have a beard!
髭を生やすな。(Plain Form)
Conditional Form
English Meaning: if (subject) grow
| Conjugation | Romaji Reading |
| 生やせば | hayaseba |
If you grow a beard, you will look mature.
髭を生やせば、大人びて見えるでしょう。(Polite Form)
Hypothetical/Definite Conditions, Sequence of Actions
English Meanings: if/when ~ grow, ~ grew and ~
The form「～たら」has different usages. It has other meanings except from those listed above. More explanations are in our conversation lessons or mail support.
| Conjugation | Romaji Reading |
| 生やしたら | hayashitara |
Here is an example sentence wherein「たら」indicates a “sequence of actions.”
When I grew a beard, I looked like I was in my thirties.
髭を生やしたら、３０代に思われた。(Polite Form)
Causative Form
English Meaning: make/let/have (person) grow
| Positive | Conjugation | Romaji Reading |
| Plain Form | 生やさせる | hayasaseru |
| Polite Form | 生やさせます | hayasasemasu |
My son is going to go to Morocco so I make him grow a beard.
息子がモロッコに行くので髭を生やさせる。(Plain Form)
息子がモロッコに行くので髭を生やさせます。(Polite Form)
English Meaning: do not make/let/have (person) grow
| Negative | Conjugation | Romaji Reading |
| Plain Form | 生やさせない | hayasasenai |
| Polite Form | 生やさせません | hayasasemasen |
I won’t let my employees grow beards.
弊社の社員には髭を生やさせない。(Plain Form)
弊社の社員には髭を生やさせません。(Polite Form)
To Learn Correct Verb Conjugations
Japanese verb conjugation is too complicated and there are many learners who use it incorrectly. Therefore, we provide lessons and services where we teach and correct your Japanese daily. If you want to know more about the details, please check out our website.
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