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Spoken Japanese Verb Conjugator
Conjugate a Japanese verb, then compare the full textbook form with the shorter form you are likely to meet in conversation and subtitles.
ている → てる · てしまう → ちゃう · でしまう → じゃう · なければならない → なきゃ
Confirm ambiguous る verbs
The tool suggests a likely group, but verbs such as 帰る are godan even though they end in る. Keep the selector explicit so you remain in control.
Read the form inside a sentence
Conjugation gives you the shape. Context gives you the meaning. Send a form to the sentence analyzer to see what it contributes to a complete line, or read how these contractions show up in real dialogue in the Japanese grammar from Netflix guide.
Spoken Japanese conjugation FAQ
Why do Japanese subtitles use てる instead of ている?
In casual speech, the い in ている or でいる is frequently omitted. 食べている becomes 食べてる, and 読んでいる becomes 読んでる.
How do I know whether a る verb is ichidan or godan?
The ending alone is not always enough. Many verbs are ichidan, but common verbs such as 帰る and 走る are godan. Use a dictionary when the suggestion is uncertain.
What do ちゃう, じゃう, and なきゃ mean?
ちゃう contracts てしまう, じゃう contracts でしまう, and なきゃ is a casual shortening of an obligation pattern such as なければならない.