滞る (todokooru) conjugation
to stagnate, to be delayed
滞る (とどこおる, todokooru) 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 | 滞る todokooru | 滞ります todokoorimasu | The form you look up. Also the casual present and future. |
| Plain negative | 滞らない todokooranai | 滞りません todokoorimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 滞った todokootta | 滞りました todokoorimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 滞らなかった todokooranakatta | 滞りませんでした todokoorimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 滞って todokootte | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 滞っている todokootteiru | 滞っています todokootteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 滞りたい todokooritai | 滞りたいです todokooritaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 滞ろう todokoorou | 滞りましょう todokoorimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 滞れる todokooreru | 滞れます todokooremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 滞られる todokoorareru | 滞られます todokooraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 滞らせる todokooraseru | 滞らせます todokoorasemasu | Make or let someone do it. |
| Causative-passive | 滞らされる todokoorasareru | 滞らされます todokoorasaremasu | Be made to do it — the long one. |
| Imperative | 滞れ todokoore | 滞ってください todokoottekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 滞るな todokooruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 滞れば todokooreba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 滞ったら todokoottara | — | “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.