what are clauses ?

A clause is a group of words that consists of a subject and a predicate. There are three main types of dependent clauses: noun clauses, adjective clauses, and adverb clauses.- "I imagine [that they're having a good time.]"- "I keep thinking about [what happened yesterday.]"The clauses are bracketed.

• Tara ate a cheese rollafter she watched the news.

(Tara ate a cheese rollis an independent clause. It works as a single sentence.)Hope you understood!:)