What is the perfect way to teach English for those who do not know anything about English?

Take a suitable English learning course and start to teach. While selecting a course keep in mind that it should be inclusive to all the four skills; reading, writing, speaking and listening.

Through books English language learning, and mobile apps for English language teaching, courses of English language teaching, English language programs in tv , special education English language sites.

Well sir, one have to start and follow from the initials the learning period maybe shorter but one has to learn all.