I think you don't need only grammar but also vocabulary listenning writting and reading skills
I agree with it besides, it is a good opportunity to teach this beautiful
and rich language to non English
speaking people and in my contry Panama Republic of Panama are a lots of people willing to learn English,
In fact I have a part-time job as English teacher in a High School.
Being able to explain the English language is very difficult. Even those who have study it for years still can not explain every detail of the English language. A good teacher of English is a person who use it in his or her daily life. They are the one's who teach English to those who hear or read what that person has said or wrote.
I disagree. Teaching the language is a whole different ballgame.
Knowing grammar is important but it isn't enough ,vocabulary and idioms are even more valueble
this is correct sentence.so i agree
the right sentece should be " if you are able to explain the gramma, then you teach the language"