Godan verbs ending in く

The 103 godan verbs that end in く. A godan verb moves its final kana along that kana's vowel row: か before ない (書かない), き before ます (書きます), け for the potential and ば forms (書ける, 書けば), こ for the volitional (書こう). Its て and た forms are 書いて and 書いた. In the て and た forms it takes いて/いで, which it shares with ぐ.