Some verbs don't require an object, while others do. In this video, we learn when a sentence is complete, and when we need to add more words.

By adding a complement, we can form a complete sentence that is both grammatically correct and communicates meaning.

Using adjectives and adverbs, we can add detail and information to a basic sentence.

In this video, we learn how words called “conjunctions” are used to join two ideas to make one complex sentence. These parts are known as "clauses" and can be either independent or dependent.

A sentence can be formed from multiple independent clauses, and could in theory go on forever! But is this really a good idea? Olivier and Gina offer us some helpful guidelines.

This video will show you, in simple terms, the difference between an independent (or "main") clause and a dependent (or "subordinate") clause. It's important to remember than a dependent clause depends on the independent clause, and does not make sense on its own.

Relative pronouns such as “who,” “which,” or “what” can link two “relative clauses.” Gina and Olivier review what we have learned and give us some final tips on studying English sentence structure.

This video will teach you the different pronunciations of the word "the" in American English and when they are used.

What exactly is it that makes Yabla such a fun and effective language learning tool? Amy explains what she enjoys about using Yabla, and how we can gain the most from the experience.

Annette explains what colloquial contractions are, and shows us three popular ones: "kinda," "wanna," and "gonna." She tells us where these words come from and how they're used in context.

Annette explains three more colloquial contractions people use in everyday conversation: gotta [got to], gotcha [got you], and dunno [don't know]. She also gives us examples in context.

Annette offers an array of ways to greet people, from sunup to bedtime. Ways of greeting people vary from place to place, but Annette provides one general rule — greetings must be cheerful and friendly.

Annette recites a poem to help students with English pronunciation and its maddening inconsistencies.

Annette explains how to ask for help, or for someone to lend a hand, in different contexts. She teaches us the best phrases for everyday situations, and how to soften our language to keep requests polite and casual.

Annette discusses how we might ask for help in various formal situations, in which we may be talking to someone we don’t know very well, an authority figure, or a total stranger.