Grammar

Adjectives

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.

Contractions with the verb BE

The simple present of the verb BE can be contracted in two ways: with a subject pronoun or with the negative adverb not

Contractions with the verb DO

The simple present and simple past of the auxiliary verb DO are frequently contracted with the negative adverb not.

Contractions with the verb HAVE

This lesson explains how to make contractions with the verb HAVE and a subject pronoun or the negative adverb not.

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.

Future

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

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.

Irregular verbs

A list of the most common irregular English verbs, including their simple past conjugations and present and past participles.

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Mistakes and Difficulties Imply vs Infer The English verbs imply and infer are often confused by English speakers. That's not to imply that you're one of them, but if that's how you infer it, go ahead and read this lesson. Stationary vs Stationery The words stationary and stationery are often confused by English speakers due to their similar spelling and pronunciation. If you remain stationary in front of your computer, you can copy this lesson onto your own stationery. More than vs Over Though it's no longer official, over is widely considered incorrect when used in front of a number; the correct term is more than. You'll have learned more than you need to know once you've read over this lesson. Principal vs Principle The words principal and principle are often confused by English speakers. Read this lesson to learn the principles of the principal meanings. Advice vs Advise The words advice and advise are often confused in English. I advise you to read through this lesson so you will no longer need advice on this matter.

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