When a sentence only has verb what is the understood subject?

When a sentence only has a verb, the understood subject is usually "you". This is especially true in imperative sentences, which are sentences that give commands or instructions.

Here are some examples:

* "Go!" (You go)

* "Listen!" (You listen)

* "Stop!" (You stop)

In some cases, the understood subject can also be "it", especially when referring to a general or impersonal action.

For example:

* "Raining." (It is raining)

* "Getting dark." (It is getting dark)

However, it's important to note that context plays a crucial role in determining the understood subject. If the context provides a different subject, then that subject would be understood.