貸す (kasu) conjugation
to lend
貸す (かす, kasu) is a godan verb. Godan verbs change their final kana up and down its column of the kana chart — the a-row for negatives, the i-row before ます, the e-row for potential and ば. Every form below is tappable — hear it, then say it back.
Conjugation table
| Form | Plain (casual) | Polite (~ます) | When you use it |
|---|---|---|---|
| Dictionary / plain | 貸す kasu | 貸します kashimasu | The form you look up. Also the casual present and future. |
| Plain negative | 貸さない kasanai | 貸しません kashimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 貸した kashita | 貸しました kashimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 貸さなかった kasanakatta | 貸しませんでした kashimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 貸して kashite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 貸している kashiteiru | 貸しています kashiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 貸したい kashitai | 貸したいです kashitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 貸そう kasou | 貸しましょう kashimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 貸せる kaseru | 貸せます kasemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 貸される kasareru | 貸されます kasaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 貸させる kasaseru | 貸させます kasasemasu | Make or let someone do it. |
| Causative-passive | 貸させられる kasaserareru | 貸させられます kasaseraremasu | Be made to do it — the long one. |
| Imperative | 貸せ kase | 貸してください kashitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 貸すな kasuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 貸せば kaseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 貸したら kashitara | — | “if / when ~”. The everyday conditional. |
🔊 Tap any Japanese word to hear it spoken.
Why it conjugates this way
Godan verbs change their final kana up and down its column of the kana chart — the a-row for negatives, the i-row before ます, the e-row for potential and ば.
See the full rules on the verb conjugation guide.