The English language is different from the Chinese language in many ways.In Chinese there is noconcord,while in English verbs must be in agreement with subjects in person and number: a pronoun must be in agreement with the noun it refers to;elements in parallel structures must be in agreement with one another,therefore concord in English is quite important.We can say without exaggeration that one cannot produce a single sentence in English if there is no concord.This article is going to deal with concord in English by giving some principles supported by examples. The English language is different from the Chinese language in many ways.In Chinese there is noconcord, while in verb must be in agreement with subjects in person and number: a pronoun must be in agreement with the noun it refers to; elements in parallel structures must be in agreement with one another, therefore concord in English is quite important.We can say without exaggeration that one can not produce a single sentence in English if there is no concord.This article is going to deal with concord in English by giving some principles supported by examples.