<p><strong>Conjunction</strong></p><ul><li>in spite of the fact that;</li><li>even though;</li><li>though.</li></ul><p><strong>Adverb</strong></p><ul><li>at what time?</li><li>how long ago?</li><li>how soon?</li><li>under what circumstances?</li><li>upon what occasion?</li></ul><p><strong>Pronoun</strong></p><ul><li>what time?</li></ul><p><strong>Noun</strong></p><ul><li>the time of anything;</li><li>the when and the where of an act.</li></ul>