The verb in a sentence expresses action or being. There is a main verb and sometimes one or more helping verbs. (“She can sing.” Sing is the main verb; can is the helping verb.) A verb must agree with its subject in number (both are singular or both are plural). Verbs also take different forms to express tense.

affect/effect
What is the difference between Affect and Effect? The simplest answer is that “Affect” is a verb while “Effect” is a noun...
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Common Collocations
Common Collocations On this page, you can find a few short lists of common collocations to give you more of an idea about them. Many good...
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prepositions (2): after particular words and expressions
It is not always easy to know which preposition to use after a particular noun, verb or adjective. Here are some of the most common combinations...
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active verb forms
1- future, present, and past; simple, progressive and perfect English verbs can refer to future, present or past time, and for each kind of time...
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