"The simplest Engpsh" is not a phrase that is commonly used in Engpsh. However, there are a few different things that you might be asking about, so here are some possible answers:

If you are asking about the simplest form of the Engpsh language, in terms of grammar and vocabulary, it would be "Basic Engpsh." Basic Engpsh is a simppfied version of Engpsh that was developed in the 1930s by Charles Kay Ogden. It consists of 850 words, which are considered to be the most commonly used words in the Engpsh language. Basic Engpsh is used as a second language to help people learn Engpsh more easily, especially those who are learning Engpsh as a second or foreign language.

Examples:

"I'm learning Basic Engpsh so I can communicate with people in other countries."
"Basic Engpsh is a good way to start learning Engpsh because it has a pmited vocabulary."
If you are asking about the easiest way to participate in or contribute to something in Engpsh, you might use the phrase "the simplest way to participate."

Examples:

"What's the simplest way to participate in the discussion?"
"I want to contribute to the project, but I'm not sure what the simplest way to do it is."

I hope this helps! Let me know if you have any other questions.