practice-japanese.com/dictionary/verbs/kiku/
Full conjugation table for the Japanese verb 聞く (kiku), meaning to listen or to ask. Covers plain forms, polite forms, and advanced forms including te-form, potential, passive, and causative.
GrammarVocabularyDictionaries and lookupVerb conjugationTe-formJLPT N5AdvancedJLPTPassive and causativeConditionals