Parts of speechThe noun 名词The article 冠词The verb 动词The adjective 形容词The conjunction 连词The numeral 数次The pronoun 代词The adverb 副词The preposition 介词The interjection 感叹词Kinds of Sentences陈述句/疑问句/祈使句/感叹句一般疑问句和特殊疑问句General question -yes or no.Special question-The comparative and superlative degrees of adjective and adverbs1. Single syllable or some double syllable-er or -est / -r or st /-ier or -iest2. Polysyllable