what wh-pronounhappened verb, past tenseis verb, 3rd person singular presentthe determinerfew adjectivepatients noun, pluralthat wh-determinerare verb, non-3rd person singular presentgetting verb, gerund or present participlereinfected proper noun, singularthey personal pronounprobably adverbgot verb, past tensethe determinervirus noun, singular or massand coordinating conjunctionthey personal pronoun