up preposition or subordinating conjunctionwhen wh-adverbyou personal pronounclicked verb, past tenseon preposition or subordinating conjunctionit personal pronounclicks verb, 3rd person singular presentwere verb, past tensedetected verb, past participleby preposition or subordinating conjunctiona determinermicroswitch proper noun, singularand coordinating conjunctionthat wh-determiner's verb, 3rd person singular presentas adverbsimple adjectiveas preposition or subordinating conjunctionit personal pronoun