Present and future
now, habits, and what is to come
| Form | Polite | Plain |
|---|---|---|
| AffirmativeI agree | ||
| NegativeI don’t agree |
Conjugation
Tap any form to hear it. The part that changes is in colour.
Past
finished actions
| Form | Polite | Plain |
|---|---|---|
| AffirmativeI agreed | ||
| NegativeI didn’t agree |
Te-form
て形 · joining actions, “doing”, requests
| Form | Polite | Plain |
|---|---|---|
| て-formagreeing, and… | ||
| Doing now (て います)I am agreeing | ||
| Please (て ください)please agree |
Potential
可能形 · “can”
| Form | Polite | Plain |
|---|---|---|
| AffirmativeI can agree | ||
| NegativeI can’t agree |
Want to
たい形 · “want to”
| Form | Polite | Plain |
|---|---|---|
| AffirmativeI want to agree | ||
| NegativeI don’t want to agree |
Volitional
意向形 · “let’s”, “I’ll”
| Form | Polite | Plain |
|---|---|---|
| Let’slet’s agree |
Conditional
条件形 · “if” and “when”
- If (ば) if I agree
- If, when (たら) if I agree
Commands and requests
命令形 · from gentle to blunt
- Do it (なさい) agree (do it)
- Plain command agree!
- Please don’t please don’t agree
Passive and causative
受身形・使役形 · “is done”, “make someone do”
| Form | Polite | Plain |
|---|---|---|
| PassiveI am agreed | ||
| CausativeI make someone agree |
How to use さんせい する
One sentence for each tense, the way people say it.
-
Present and future
わたし は その けいかく に さんせい します。
I agree with that plan.
-
Past
みんな が あたらしい ルール に さんせい した。
Everyone agreed to the new rule.
-
Te-form
はは は わたし の けっこん に さんせい して います。
My mother is in favour of my marriage.
-
Potential
その いけん には、 どうしても さんせい できません。
I just can't agree with that opinion.
-
Want to
さんせい したい けど、 おかね が ない。
I'd like to say yes, but there's no money.
-
Volitional
かれ の あん に さんせい しよう。
Let's go along with his proposal.
-
Conditional
みんな が さんせい すれば、 すぐ はじめます。
If everyone agrees, we'll start right away.
-
Commands and requests
なんでも さんせい しないで、 じぶん で かんがえなさい。
Don't agree with everything; think for yourself.
-
Passive and causative
わたし の あん は、 ぜんいん に さんせい された。
My proposal was agreed to by everyone.
Good to know
- さんせい する takes に: その いけん に さんせい です; the opposite is はんたい する.
Verbs like this one
The same pattern, on other verbs: する verb.