溶かす (tokasu) conjugation
to melt, to dissolve
溶かす (とかす, tokasu) 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 | 溶かす tokasu | 溶かします tokashimasu | The form you look up. Also the casual present and future. |
| Plain negative | 溶かさない tokasanai | 溶かしません tokashimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 溶かした tokashita | 溶かしました tokashimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 溶かさなかった tokasanakatta | 溶かしませんでした tokashimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 溶かして tokashite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 溶かしている tokashiteiru | 溶かしています tokashiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 溶かしたい tokashitai | 溶かしたいです tokashitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 溶かそう tokasou | 溶かしましょう tokashimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 溶かせる tokaseru | 溶かせます tokasemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 溶かされる tokasareru | 溶かされます tokasaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 溶かさせる tokasaseru | 溶かさせます tokasasemasu | Make or let someone do it. |
| Causative-passive | 溶かさせられる tokasaserareru | 溶かさせられます tokasaseraremasu | Be made to do it — the long one. |
| Imperative | 溶かせ tokase | 溶かしてください tokashitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 溶かすな tokasuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 溶かせば tokaseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 溶かしたら tokashitara | — | “if / when ~”. The everyday conditional. |
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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.