Question

麻烦帮我看看这句英语语法错在哪里？

They are bound to be not only proficient in the lesson he or she teaches , but also good at communicating with children

Answer 1

not only 和but also 的谓语应该保持一直吧

追问

麻烦帮我写一下正确的版本~谢谢！

Answer 2

遇到学习语法非常的重要，掌握好语法才是英语学习的关键

Answer 3

not only +某成分或者句式，but also +相同于前面的某成分和句式。
They are bound to not only be proficient in the lesson he or she teaches, but also be good at communication with children.

Answer 4

删去be not only but also

Answer 5

They are bound to be not only proficient in the lesson he or she teaches , but also good at communicating with children
这里teach的宾语是定语从句的先行词 lesson，不对，应该是人，所以可以把teach 换成learn