向英语语法大人求助啊请问这段东西有无语法错误?It is instrumental in that communicat

向英语语法大人求助啊
请问这段东西有无语法错误?
It is instrumental in that communicating by speaking or writing is a purposeful act.It is social and conventional in that language is a social semiotic and communication can only take place effectively if all the users share a broad understanding of human interaction including such associated factors as nonverbal cues,motivation,and socio-cultural roles.哎,我没分了