Adjectives are words that modify nouns. They describe nouns by telling us the color, age, size, or some other characteristic of that noun. Unlike adjectives in some languages, in English they have a single form – they do not change according to gender, number, or location in the sentence.

Auxiliary verbs

Auxiliary verbs, also called helping verbs, are used with a main verb to create compound verb forms.

Clause vs Phrase

The grammatical terms clause and phrase are often confused by English speakers. This lesson filled with clauses and phrases will help you understand the difference.

Definite article

English has one definite article: the. The English definite article is used very little in comparison to the definite articles in some languages.

Demonstrative adjectives

Demonstrative adjectives indicate which thing or group of things you are talking about. In English, there are four forms according to the number of items and where they are located in relation to the speaker.


This lesson introduces the various forms English uses to indicate the future.

Future: Will vs present progressive

This lesson examines the similarities and differences between the two primary future constructions used in English: will and the present progressive.

Indefinite article

The English indefinite articles are a and an. They refer to something unspecific.

Introduction to contractions

A contraction is a word created by combining two words, removing one or more letters, and replacing them with an apostrophe.

Introduction to negation

Negative statements are the opposite of affirmative statements. In English, there are several ways to create negative statements.

Introduction to questions

In any language, obtaining information can be complicated. To get information from another person requires the ability to ask questions. There are two primary forms of questions in English.

Introduction to verbs

Verbs are the words in a sentence that indicate an action, a state of being, or possession.