足す
たす
to add (numbers)
Tasu (足す) is a godan verb meaning "to add (numbers)". Its polite form is 足します (tashimasu), its te form is 足して (tashite), its past form is 足した (tashita), and its negative form is 足さない (tasanai).
Godan verbJLPT N4
Tasu (足す) conjugation quick reference
足す means "to add (numbers)". Its main forms are listed below, with links to the grammar pattern behind each form.
Tasu example sentences
りんごを一つ足します。
I will add one apple.
お金を足しません。
I won’t add (any) money.
牛乳を足しました。
I added milk.
How to use Tasu: grammar notes
•Use を after the thing you are adding—like in「砂糖を足します」(I add sugar).
•When adding one number to another, say "AにBを足す"—for example,「5に3を足すと8になります」(5 plus 3 becomes 8).
•Don’t mix up 足す (to add) with 足りる (to be enough); 足す is for when you want to increase or add something.
•JLPT N4 level
Common phrases with Tasu
塩を足す（しおをたす）
Add salt
数を足す（かずをたす）
Add (the) numbers
足して二で割る（たしてにでわる）
Add them and divide by two (used to suggest a compromise)
Tasu (足す) conjugation table
| Form | Japanese | Romaji |
|---|---|---|
| Basic Forms | ||
| Dictionary Form | 足す | tasu |
| Masu Form | 足します | tashimasu |
| Te Form | 足して | tashite |
| Past Form | 足した | tashita |
| Negative Form | 足さない | tasanai |
| Past Negative | 足さなかった | tasanakatta |
| Polite Forms | ||
| Polite Present | 足します | tashimasu |
| Polite Past | 足しました | tashimashita |
| Polite Negative | 足しません | tashimasen |
| Polite Past Negative | 足しませんでした | tashimasendeshita |
| Advanced Forms | ||
| Potential Form | 足せる | taseru |
| Passive Form | 足される | tasareru |
| Causative Form | 足させる | tasaseru |
| Causative Passive | 足さされる | tasasareru |
| Volitional Form | 足そう | tasou |
| Imperative Form | 足せ | tase |
| Conditional Forms | ||
| Conditional (ば) | 足せば | taseba |
| Conditional (たら) | 足したら | tashitara |
| Other Forms | ||
| Progressive Form | 足している | tashiteiru |
| Desire (たい) | 足したい | tashitai |
| Prohibition | 足すな | tasuna |