Sigrid uses the question words "who," "what," "when," "where," "why," and "how" as she thinks out loud about her next vacation. Where will she go? How will she get there? How much will it cost?

Sigrid packs her carry-on bag for the flight to Paris. She talks about what she needs to pack, and why.

We use question words plus words like "some" and "any" to form new indefinite words, such as "sometime," "sometimes," and "anytime." This video is about question words "who," "what," and "when."

This video is about indefinite answers to the question words "where" and "how." We combine these question words with "some" and "any" to form new indefinite words, such as "somewhere," "somehow," "anywhere," "anyhow," and "anyway."

Adjectives are an important part of speech. They give us additional information about nouns. Let's look at how they work in English.

Sigrid looks at how the comparative and superlative forms of one- and two-syllable adjectives are created.

Here's a simple list of common, everyday adjectives in their positive, comparative and superlative forms, divided into groups to facilitate memorization.

Sigrid looks at the comparative and superlative forms of adjectives that have a "Y" or an "E" at the end, and also some that don't follow any pattern at all!

With longer adjectives, we have to add some extra words in order to form the comparative and superlative. Sigrid explains how.

Modal verbs are special verbs that go together with action verbs to indicate ability, permission, obligation and more. Let's see how they work.

Every modal verb is a bit different and not all of them can be used in all tenses. We use "may" for permission, but we can use "can" and its conditional form "could" as well.

When do we use "should" and "could"? At the end of the video, you'll also find a preview of the next 2 videos where modals are used in everyday speech for discussing probability.

Sigrid has lost a couple of important items and is trying to think where they might be. In this part, she has lost her car key. She uses plenty of modal verbs to tell her story, including modal verbs expressing probability.

Now Sigrid has also lost her glasses! In this final part, learn how to use modal verbs to express probability, and find out whether she finds the missing items.

Michael David Rosenberg, better known by his stage name Passenger, is an English singer-songwriter and musician. Enjoy this acoustic solo performance of his song "Anywhere."