て-form

The て-form (てけい) is one of the most versatile and important verb conjugations in Japanese. Rather than functioning as a tense, it acts as a connective form — linking clauses together much like 'and' or 'then' in English. It is also the base for a large family of grammar patterns such as ～ている (ongoing action), ～てください (please do), ～てもいい (may I), and ～てから (after doing). Formation rules differ by verb group. For Group 1 (u-verbs), the ending changes based on the final syllable: verbs ending in う・つ・る → って; ぬ・ぶ・む → んで; く → いて; ぐ → いで; す → して. The irregular verb いく follows the う-group rule but takes いって instead of いいて. For Group 2 (ru-verbs), simply replace る with て. The two irregular verbs are する → して and くる → きて. The て-form of i-adjectives is formed by replacing い with くて (e.g. たかい → たかくて), and for na-adjectives by adding で after the stem (e.g. しずか → しずかで). Mastering the て-form is essential because it unlocks dozens of common grammar patterns used in everyday conversation.