What is the simple form of a verb without any ending?

The simple form of a verb without any ending is called the infinitive. It is usually preceded by the word "to", like "to run", "to eat", "to sleep".

However, sometimes the infinitive is used without "to", like when it follows certain verbs like "let", "make", or "help":

* Let me go.

* Make them sit down.

* Help us carry this.

It's important to note that the infinitive is not the same as the base form of a verb. The base form is simply the verb without any endings, like "run", "eat", "sleep". The infinitive is a specific form of the verb that is used to express a general action or state.