Every Japanese verb falls into one of three groups, and each group follows a fixed set of rules. Master the patterns once, and you can conjugate any verb you meet. Click 🔊 on any form to hear it.
End in any う-row sound: う, く, ぐ, す, つ, ぬ, ぶ, む, or る. The final syllable shifts through five vowel rows (あ・い・う・え・お) — hence the name godan ("five-step").
⚠ Some る-ending verbs (帰る, 入る, 走る, 切る, 知る) look like Group 2 but are actually Group 1. Memorise these traps.
End in る where the preceding kana is in the い-row or え-row. Conjugation is simple: drop the る, then attach the ending.
✓ Cleaner pattern than Group 1 — once you can spot the い/え before る, you're set.
Only two true irregulars: する (to do) and 来る (to come). Every noun + する compound (勉強する, 結婚する, …) conjugates like する.
✓ Just two patterns to memorise — but they're everywhere, so they're worth drilling.
Each form below shows the rule for each group plus a worked example. The same rules drive every verb in the library further down the page.
Click a verb to expand its full conjugation table. Every form has a 🔊 button.
Pick the correct conjugation. The drill mixes verbs and forms — restart any time.