This is Who or What the sentence is talking about.

This clause can stand on its own.

This is a person, place, thing, or idea.

This sentence is one: Oolong tea is originally from a mountainous region of Taiwan.

This verb tense describes routines, facts, or truths.

This is the action that the Do-er of the sentence performs.

This clause uses a word such as because, when, or since, and it cannot stand on its own.

This stands in place of a noun. It can be possessive, or it can refer to a subject or object.

This sentence is one: Oolong tea is originally from a mountainous region of Taiwan, and it is quite popular throughout the world.

This verb tense describes things that are happening right now or these days.

This is a Subject-Verb combination

This is a sentence made up of two independent clauses.

This is a word that joins two independent clauses.

This sentence is one: Oolong tea is expensive because it can only grow in mountainous regions that are difficult to access.

This verb tense can be used to describe the future, but it does not use Will or Be Going To.

This is a group of words that does not have a Subject-Verb combination.

This is a sentence made up of one independent clause and one dependent clause.

This is a word that joins an independent clause to a dependent clause.

This sentence is one: Oolong tea originated in a mountainous region of Taiwan, but it has since been successfully grown in China where it has become one of the most popular teas.

This verb tense connects the past with the present.

This has at least one clause, a capital letter at the beginning, and punctuation at the end.

This is a sentence made up of two independent clauses and one dependent clause.

This is a word that is needed to form a continuous verb, or a perfect verb, or a question with a verb.

This sentence is joined with one of these: Not only is Oolong tea popular, but it is also considered the highest quality tea.

This verb tense connects the past with the present, and it is also happening right now or these days.