付け加える (tsukekuwaeru) conjugation
to add one thing to another
付け加える (つけくわえる, tsukekuwaeru) is an ichidan verb. Ichidan verbs are the tidy ones: drop the final る and add the ending. Nothing inside the word ever changes. 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 | 付け加える tsukekuwaeru | 付け加えます tsukekuwaemasu | The form you look up. Also the casual present and future. |
| Plain negative | 付け加えない tsukekuwaenai | 付け加えません tsukekuwaemasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 付け加えた tsukekuwaeta | 付け加えました tsukekuwaemashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 付け加えなかった tsukekuwaenakatta | 付け加えませんでした tsukekuwaemasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 付け加えて tsukekuwaete | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 付け加えている tsukekuwaeteiru | 付け加えています tsukekuwaeteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 付け加えたい tsukekuwaetai | 付け加えたいです tsukekuwaetaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 付け加えよう tsukekuwaeyou | 付け加えましょう tsukekuwaemashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 付け加えられる tsukekuwaerareru | 付け加えられます tsukekuwaeraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 付け加えられる tsukekuwaerareru | 付け加えられます tsukekuwaeraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 付け加えさせる tsukekuwaesaseru | 付け加えさせます tsukekuwaesasemasu | Make or let someone do it. |
| Causative-passive | 付け加えさせられる tsukekuwaesaserareru | 付け加えさせられます tsukekuwaesaseraremasu | Be made to do it — the long one. |
| Imperative | 付け加えろ tsukekuwaero | 付け加えてください tsukekuwaetekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 付け加えるな tsukekuwaeruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 付け加えれば tsukekuwaereba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 付け加えたら tsukekuwaetara | — | “if / when ~”. The everyday conditional. |
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Why it conjugates this way
Ichidan verbs are the tidy ones: drop the final る and add the ending. Nothing inside the word ever changes.
See the full rules on the verb conjugation guide.