Accept vs Except
These two English words are sometimes confused by native speakers. Please accept my invitation to learn the difference with this lesson.
verbs
Affect vs Effect
The English words affect and effect are often confused even by native speakers - don't let their mistakes affect your English.
Assure, Ensure, Insure
These three English words all mean "to make sure or certain" and are commonly confused, even by native speakers. This lesson will ensure that you understand the difference.
Auxiliary verbs
Auxiliary verbs, also called helping verbs, are used with a main verb to create compound verb forms.
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.
Could have vs Could of
The phrase could have refers to something that was possible but did not occur in the past. In informal speech, it is contracted to could've, not could of.
Do vs Make
English has two verbs, "to do" and "to make," that are both equivalent to a single verb in some languages, which makes it difficult for speakers of those languages to know which one to use in any given situation. Understanding the difference in meaning is key to knowing which verb you need. Future
This lesson introduces the various forms English uses to indicate the future.
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.
Modal verbs
This lesson explains the grammar of modal verbs and where they are placed in a sentence or question.
Modal verbs (part 2)
This lesson explains the meaning of each modal verb and provides example sentences.
Negation and the verb BE
The verb BE can be negated with negative adverbs, adjectives, and prefixes.