Do sentences in English have verb and are there any exception to this rule?

You're right, most sentences in English do have a verb. It's the part of the sentence that tells us what's happening, what state something is in, or what someone is doing.

However, there are exceptions to this rule. Here are a few examples:

* Imperative sentences (commands) often omit the subject (which is implied to be "you"). For example: "Close the door." (verb: "close")

* Sentence fragments are incomplete sentences that are used for effect, emphasis, or brevity. They might not have a verb. For example: "Wow!" or "So beautiful!"

* Titles are often not complete sentences and may lack a verb. For example: "The Great Gatsby"

* Exclamatory phrases can express strong emotion and may lack a verb. For example: "Ouch!"

It's important to remember that these exceptions are usually used in specific contexts and don't represent the majority of sentences in English. Most sentences will have a verb to express action, state, or occurrence.